ensley_2019 =========== T\. R\. Ensley and N\. K\. Bambha, "Ultrafast nonlinear refraction measurements of infrared transmitting materials in the mid\-wave infrared", Opt\. Express 27, 37940\-37951 \(2019\) `Source record `__ · :doc:`Catalogue ` · :doc:`Review register ` DOI: `10\.1364/OE\.27\.037940 `__ **Source kind:** measurement **Recorded technique:** Conventional single\-beam Z\-scan \(open and closed aperture, CA/OA division where valid\) with a reference detector \(p\. 37941\-37942\)\. 2 um\: Ti\:sapphire amplifier \(Spectra\-Physics Solstice, 800 nm, ~100 fs FWHM, 1 kHz\) pumping a TOPAS\-Prime OPA \(idler, horizontally polarized\), pulse 90 fs FWHM \(autocorrelation in BBO; p\. 37941\), w0 = 31 um \(HW1/e^2\), z0 = 1\.5 mm, CaF2 lens, PbS detectors\. 3\.9 um\: Coherent Hidra\-F\-100 \(800 nm, ~100 fs, 10 Hz\) pumping a TOPAS\-HE\-Prime, DFG in KTA \(horizontally polarized\), pulse 240 fs FWHM \(autocorrelation in AgGaS2\), w0 = 51 um, z0 = 2\.1 mm, ZnSe lens, PbSe detectors\. Energies by a THz radiometer \(and a calibrated pyroelectric at 3\.9 um\)\. Each Z\-scan energy is fitted separately \(Sheik\-Bahae et al\. \[11\], Eqs\. \(9\), \(11\), or a Huygens\-Fresnel propagation when 2PA is present\) and the fits averaged\. The 800\-nm measurements of Table 2 are not described separately; the only 800\-nm source is the ~100 fs Ti\:sapphire amplifier\. **Materials in structured entries:** AMTIR\-1, AMTIR\-2, AMTIR\-4, AMTIR\-5, AMTIR\-6, BK7, BaF2, CaF2, GaAs, GaSb, Ge, InP, LiF, MgF2, Si, SiO2, ZnS, ZnSe **Dataset quantities:** band\_gap, nonlinear\_index, two\_photon\_absorption\_coefficient **Contents:** 61 datasets; 2 formulas. Curation notes -------------- Journal pages 37940\-37951 = PDF pages 1\-12 \(Table 1 p\. 37945, Table 2 p\. 37947, Table 3 p\. 37948\)\. Identity checked against the first page\. DEFINITION \(p\. 37941\)\: 'n\(I\) = n0 \+ n2 I and alpha\(I\) = alpha0 \+ alpha2 I where \.\.\. I is the irradiance, and alpha2 is the third order NLA \(two\-photon absorption, 2PA\) coefficient' \(alpha2 = beta of dI/dz = \-alpha I \- beta I^2\)\. Whether reflection losses were removed from I is not stated\. 'for all materials studied, there was no observed linear dependence on n2 and/or alpha2 with irradiance' \(p\. 37942\)\. The paper does not discuss the Raman \(nuclear\) part; with 90\-240 fs pulses it is partly included \(the curators' rule\)\: part = 'unknown'\. Polarization\: linear \(the OPA idler and the DFG output are 'horizontally polarized', pp\. 37940\-37941\); crystal orientations\: GaAs and InP \[100\] wafers, the others not stated\. TRANSCRIBED \(all tables JSON\-only; every cell checked against the images, agree\)\: Table 1, semiconductors\: band gap \(eV, 'taken from Ref\. \[19\]', Sze 1981; Si and Ge '\(indirect\)'\) and n2 \(1e\-14 cm2/W\) at 2 and 3\.9 um; ZnSe at 3\.9 um is Ref\. \[24\]'s published value \(Werner et al\. 2019, a paper with Ensley as co\-author\)\: its own reproduced dataset\. Table 2 \(fluoride crystals and glasses\)\: Eq\. \(1\) \(BGO\) prediction, this work at 800 nm and 2 um, and literature values at 532 nm, 800 nm and 1\.06 um, each lettered a\-m by reference; STRUCTURAL FIX\: the library's header 'h\_2 \(10^\-6 cm^\-3/W\)' is a mis\-reading of 'n2 \(10^\-16 cm2/W\)' \(image; see the script\)\. Table 3, chalcogenide glasses \(Amorphous Materials, Inc\.\)\: n2 at 2 and 3\.9 um\. Text values\: 2PA coefficients alpha2 at 2 um of GaSb, Si and Ge \(datasets beta\_\*\)\. TEXT VALUES CHECKED against the tables\: ZnS \(5\.5 \+\- 1\.1\) and \(5\.0 \+\- 1\.3\) x 1e\-15 cm2/W at 2 and 3\.9 um; GaSb \-\(3\.5 \+\- 0\.7\) x 1e\-12 and \(5\.5 \+\- 1\.4\) x 1e\-12; Si \(7\.7 \+\- 1\.5\) x 1e\-14 at 2 um; Ge \-\(3\.5 \+\- 0\.7\) x 1e\-13 at 2 um; ZnSe \(1\.2 \+\- 0\.3\) x 1e\-14 at 3\.9 um \(Ref\. \[24\]\); CaF2 \(1\.7 \+\- 0\.34\) and MgF2 \(1\.1 \+\- 0\.22\) x 1e\-16 at 2 um; AMTIR\-1 \(7\.5 \+\- 1\.9\) x 1e\-14 and AMTIR\-5 \(1\.6 \+\- 0\.4\) x 1e\-13 at 3\.9 um; AMTIR\-6 \(8\.3 \+\- 2\) x 1e\-14 at 3\.9 um\: all agree with the tables\. UNCERTAINTY \(captions\)\: Tables 1 and 3, '\+\- 20 %' at 2 um and '\+\-25 %' at 3\.9 um; Table 2, '\+\- 15 %' at 800 nm and '\+\-20 %' at 2 um\. Relative, level not stated\. The negative n2 of GaSb and Ge at 2 um are real \(self\-defocusing near the 2PA edge, compared with the two\-band theory\)\. LITERATURE COLUMNS OF TABLE 2 \(use = reproduced\)\. Letters \(caption\)\: a Ref\. \[11\] Sheik\-Bahae et al\. 1990; b \[37\] DeSalvo et al\. 1996 \(desalvo\_1996\); c \[36\] DeSalvo et al\. 1993; d \[38\] Levenson 1974; e \[39\] Adair et al\. 1992; f \[40\] Guo et al\. 2015; g \[41\] Milam, Weber and Glass 1977; h \[18\] Adair et al\. 1989 \(adair\_1989\); i \[42\] Kabacinski et al\. 2019 \(kabacinski\_2019\); j \[43\] Milam 1998 \(milam\_1998\); k \[44\] Lu et al\. 2012; l \[45\] Milam and Weber 1976; m \[46\] Adair et al\. 1987\. '\(\+\), \(\#\), and \(\*\) denote measurements at 525 nm, 810 nm, and 1\.03 um'\: those values carry that wavelength\. The 1\.06\-um column is written as 1060 nm\. Checks against the curated originals\: b = DeSalvo's esu values converted \(BaF2 532 nm 2\.1 = DeSalvo's own text value; BaF2 1064 nm 1\.4 against 1\.43; MgF2 0\.58, 0\.58 against 0\.57 with DeSalvo's Table II n0 = 1\.4; LiF 0\.57, 0\.75 against 0\.61, 0\.81 with Table II's n0 = 1\.3, i\.e\. Ensley converted with LiF's true index ~1\.39, as refractiveindex\.info did\); h = Adair 1989 Table IV esu values converted with Adair's n\(1\.06 um\) \(BaF2 1\.91, CaF2 1\.26, MgF2 0\.76, LiF 0\.79\: agree\); i = Kabacinski's 1\.71 at 1030 nm \(agrees\); j = Milam's recommended values, 3\.0 at 527 nm and 2\.74 at 1053 nm, listed under 532 nm and 1\.06 um\. FORMULAS\: Eq\. \(1\), the Boling\-Glass\-Owyoung n2 \(Ref\. \[35\] = boling\_1978\) with K = 68, converted with n2\(mks\) = n2\(esu\) 40 pi/\(c n0\) \(Ref\. \[36\]\); Eq\. \(2\), Lines's chalcogenide/oxide n2 \(Ref\. \[54\]\)\. Section 3\.1's two\-band theory uses K = 3100, K' = 1\.5e\-8 and E\_p = 21\.4 eV \(p\. 37942; desalvo\_1996 uses K' = 7\.33e\-9 and E\_p = 21 eV and explains the factor 2\)\. Other text numbers not extracted\: GaSb n0 = 3\.78 \(2 um\) and 3\.72 \(3\.9 um\) from Ref\. \[25\], alpha0 = 0\.22 and 9\.3 cm^\-1 \(p\. 37943\); Si literature\: alpha2 ~ 0\.4 cm/GW and n2 ~ 1\.1e\-13 cm2/W at 2 um \[28\], Gai et al\. \(2\.7 \+\- 0\.5\) x 1e\-14 cm2/W at 3\-5 um \[30\]; Ge \|n2\| = 4\.0e\-14 \(2 um\), 5e\-14 \(4 um\) \[32\], chi\(3\) = 4e\-11 esu \(n2 = 9\.9e\-14 cm2/W\) at 3\.8 um \[33\] \(p\. 37945\); Wagner et al\. \[27\] alpha2\(Ge\) = 71 cm/GW at 2\.05 um\. Figures \(not digitised\)\: Fig\. 2 transmission spectra 0\.3\-20 um; Fig\. 3 ZnS Z\-scans and n2 dispersion with literature; Fig\. 4 two\-band theory curves for ZnSe, GaAs, InP, GaSb with data; Figs\. 5\-6 Z\-scans of CaF2, MgF2 \(2 um\), AMTIR\-1, AMTIR\-5 \(3\.9 um\)\. SAMPLES \(p\. 37942\)\: ZnS/Cleartran 3 mm \(Meller Optics SCD3349\-02A\); ZnSe 2 mm \(ISP Optics\); GaAs undoped \[100\] 0\.35 mm, InP undoped n\-type \[100\] 0\.35 mm, GaSb undoped p\-type 0\.5 mm \(Wafer Technology\); Si 1 mm, Ge 1 mm \(Andover\); fused silica 1 mm \(Thorlabs WG41010\); BK7 1 mm \(Thorlabs WG11010\: the paper writes 'BK7', whether Schott BK7 or N\-BK7 is not stated; recorded as BK7\); BaF2, CaF2, MgF2, LiF 3 mm \(Eksma Optics\); AMTIR\-1 2 mm, \-2 2 mm, \-4 2\.5 mm, \-5 2 mm, \-6 2 mm\. REFRACTIVEINDEX\.INFO\: the 'Ensley' n2 pages \(BK7, BaF2, CaF2, LiF, MgF2, SiO2 at 0\.8 and 2\.0 um; Si at 2\.0 and 3\.9 um\) agree with Tables 1\-2 \(1e\-16 cm2/W = 1e\-20 m2/W\)\. They give '100 fs' for every value; the paper gives 90 fs at 2 um and 240 fs at 3\.9 um \(p\. 37941\), ~100 fs only for the 800\-nm source\. **Recorded bibliographic identity status:** VALIDATED\_WITH\_WARNINGS. This concerns identification of the source; it does not establish the scientific correctness of its contents. Datasets -------- ensley\_2019/eg\_ZnS ~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "eg_ZnS", "material": "ZnS", "file": "ZnS/ensley_2019__eg_ZnS.csv", "table": "tbl_0d115aaf67aa", "quantity": "band_gap", "unit": "eV", "abscissa": "label", "use": "reproduced", "reproduced_from": [ "S. M. Sze, Physics of Semiconductor Devices (John Wiley & Sons, 1981)" ], "parameters": { "kind": "optical", "transition": "direct" } } Table 1, band gap \(p\. 37945\)\: 'The direct and indirect band gap energies are taken from Ref\. \[19\]'; direct gap\. The kind vocabulary has no direct/indirect entry\: kind = 'optical' with parameters\.transition\. Used as the two\-band model's input \(Figs\. 3\-4\)\. ensley\_2019/n2\_ZnS ~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_ZnS", "material": "ZnS", "file": "ZnS/ensley_2019__n2_ZnS.csv", "table": "tbl_0d115aaf67aa", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-14, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "2000": 0.2, "3900": 0.25 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "polarization": "linear", "form": "bulk", "grade": "Cleartran" } } Table 1 \(p\. 37945\), n2 in 1e\-14 cm2/W\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/eg\_ZnSe ~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "eg_ZnSe", "material": "ZnSe", "file": "ZnSe/ensley_2019__eg_ZnSe.csv", "table": "tbl_0d115aaf67aa", "quantity": "band_gap", "unit": "eV", "abscissa": "label", "use": "reproduced", "reproduced_from": [ "S. M. Sze, Physics of Semiconductor Devices (John Wiley & Sons, 1981)" ], "parameters": { "kind": "optical", "transition": "direct" } } Table 1, band gap \(p\. 37945\)\: 'The direct and indirect band gap energies are taken from Ref\. \[19\]'; direct gap\. The kind vocabulary has no direct/indirect entry\: kind = 'optical' with parameters\.transition\. Used as the two\-band model's input \(Figs\. 3\-4\)\. ensley\_2019/n2\_ZnSe ~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_ZnSe", "material": "ZnSe", "file": "ZnSe/ensley_2019__n2_ZnSe.csv", "table": "tbl_0d115aaf67aa", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-14, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "2000": 0.2 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "polarization": "linear", "form": "bulk" } } Table 1 \(p\. 37945\), n2 in 1e\-14 cm2/W\. The 3\.9\-um value is Ref\. \[24\]'s \(dataset n2\_ZnSe\_werner\_2019\)\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/eg\_GaAs ~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "eg_GaAs", "material": "GaAs", "file": "GaAs/ensley_2019__eg_GaAs.csv", "table": "tbl_0d115aaf67aa", "quantity": "band_gap", "unit": "eV", "abscissa": "label", "use": "reproduced", "reproduced_from": [ "S. M. Sze, Physics of Semiconductor Devices (John Wiley & Sons, 1981)" ], "parameters": { "kind": "optical", "transition": "direct" } } Table 1, band gap \(p\. 37945\)\: 'The direct and indirect band gap energies are taken from Ref\. \[19\]'; direct gap\. The kind vocabulary has no direct/indirect entry\: kind = 'optical' with parameters\.transition\. Used as the two\-band model's input \(Figs\. 3\-4\)\. ensley\_2019/n2\_GaAs ~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_GaAs", "material": "GaAs", "file": "GaAs/ensley_2019__n2_GaAs.csv", "table": "tbl_0d115aaf67aa", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-14, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "2000": 0.2, "3900": 0.25 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "polarization": "linear", "form": "bulk" } } Table 1 \(p\. 37945\), n2 in 1e\-14 cm2/W\. \[100\] wafer; no NLA observed\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/eg\_InP ~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "eg_InP", "material": "InP", "file": "InP/ensley_2019__eg_InP.csv", "table": "tbl_0d115aaf67aa", "quantity": "band_gap", "unit": "eV", "abscissa": "label", "use": "reproduced", "reproduced_from": [ "S. M. Sze, Physics of Semiconductor Devices (John Wiley & Sons, 1981)" ], "parameters": { "kind": "optical", "transition": "direct" } } Table 1, band gap \(p\. 37945\)\: 'The direct and indirect band gap energies are taken from Ref\. \[19\]'; direct gap\. The kind vocabulary has no direct/indirect entry\: kind = 'optical' with parameters\.transition\. Used as the two\-band model's input \(Figs\. 3\-4\)\. ensley\_2019/n2\_InP ~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_InP", "material": "InP", "file": "InP/ensley_2019__n2_InP.csv", "table": "tbl_0d115aaf67aa", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-14, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "2000": 0.2, "3900": 0.25 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "polarization": "linear", "form": "bulk" } } Table 1 \(p\. 37945\), n2 in 1e\-14 cm2/W\. \[100\] wafer; no NLA observed\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/eg\_GaSb ~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "eg_GaSb", "material": "GaSb", "file": "GaSb/ensley_2019__eg_GaSb.csv", "table": "tbl_0d115aaf67aa", "quantity": "band_gap", "unit": "eV", "abscissa": "label", "use": "reproduced", "reproduced_from": [ "S. M. Sze, Physics of Semiconductor Devices (John Wiley & Sons, 1981)" ], "parameters": { "kind": "optical", "transition": "direct" } } Table 1, band gap \(p\. 37945\)\: 'The direct and indirect band gap energies are taken from Ref\. \[19\]'; direct gap\. The kind vocabulary has no direct/indirect entry\: kind = 'optical' with parameters\.transition\. Used as the two\-band model's input \(Figs\. 3\-4\)\. ensley\_2019/n2\_GaSb ~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_GaSb", "material": "GaSb", "file": "GaSb/ensley_2019__n2_GaSb.csv", "table": "tbl_0d115aaf67aa", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-14, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "2000": 0.2, "3900": 0.25 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "polarization": "linear", "form": "bulk" } } Table 1 \(p\. 37945\), n2 in 1e\-14 cm2/W\. At 2 um the closed\-aperture fit holds the 2PA coefficient fixed \(beta dataset\); no NLA at 3\.9 um \(GaSb\: fitted with alpha0 = 9\.3 cm^\-1\)\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/eg\_Si ~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "eg_Si", "material": "Si", "file": "Si/ensley_2019__eg_Si.csv", "table": "tbl_0d115aaf67aa", "quantity": "band_gap", "unit": "eV", "abscissa": "label", "use": "reproduced", "reproduced_from": [ "S. M. Sze, Physics of Semiconductor Devices (John Wiley & Sons, 1981)" ], "parameters": { "kind": "optical", "transition": "indirect" } } Table 1, band gap \(p\. 37945\)\: 'The direct and indirect band gap energies are taken from Ref\. \[19\]'; indirect gap \(printed with '\(indirect\)'\)\. The kind vocabulary has no direct/indirect entry\: kind = 'optical' with parameters\.transition\. Used as the two\-band model's input \(Figs\. 3\-4\)\. ensley\_2019/n2\_Si ~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_Si", "material": "Si", "file": "Si/ensley_2019__n2_Si.csv", "table": "tbl_0d115aaf67aa", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-14, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "2000": 0.2, "3900": 0.25 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "polarization": "linear", "form": "bulk" } } Table 1 \(p\. 37945\), n2 in 1e\-14 cm2/W\. At 2 um the closed\-aperture fit holds the 2PA coefficient fixed \(beta dataset\); no NLA at 3\.9 um \(GaSb\: fitted with alpha0 = 9\.3 cm^\-1\)\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/eg\_Ge ~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "eg_Ge", "material": "Ge", "file": "Ge/ensley_2019__eg_Ge.csv", "table": "tbl_0d115aaf67aa", "quantity": "band_gap", "unit": "eV", "abscissa": "label", "use": "reproduced", "reproduced_from": [ "S. M. Sze, Physics of Semiconductor Devices (John Wiley & Sons, 1981)" ], "parameters": { "kind": "optical", "transition": "indirect" } } Table 1, band gap \(p\. 37945\)\: 'The direct and indirect band gap energies are taken from Ref\. \[19\]'; indirect gap \(printed with '\(indirect\)'\)\. The kind vocabulary has no direct/indirect entry\: kind = 'optical' with parameters\.transition\. Used as the two\-band model's input \(Figs\. 3\-4\)\. ensley\_2019/n2\_Ge ~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_Ge", "material": "Ge", "file": "Ge/ensley_2019__n2_Ge.csv", "table": "tbl_0d115aaf67aa", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-14, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "2000": 0.2, "3900": 0.25 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "polarization": "linear", "form": "bulk" } } Table 1 \(p\. 37945\), n2 in 1e\-14 cm2/W\. At 2 um the closed\-aperture fit holds the 2PA coefficient fixed \(beta dataset\); no NLA at 3\.9 um \(GaSb\: fitted with alpha0 = 9\.3 cm^\-1\)\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/n2\_ZnSe\_werner\_2019 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_ZnSe_werner_2019", "material": "ZnSe", "file": "ZnSe/ensley_2019__n2_ZnSe_werner_2019.csv", "table": "tbl_0d115aaf67aa", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-14, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "K. Werner, M. G. Hastings, A. Schweinsberg, B. L. Wilmer, D. Austin, C. M. Wolfe, M. Kolesik, T. R. Ensley, L. Vanderhoef, A. Valenzuela, and E. Chowdhury, Opt. Express 27(3), 2867-2885 (2019)" ], "uncertainty": { "relative": 0.25, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "form": "bulk" } } Table 1, ZnSe at 3\.9 um \(p\. 37945\)\: 'a previously published value from Ref\. \[24\]'; the text gives \(1\.2 \+\- 0\.3\) x 10^\-14 cm2/W \(p\. 37943\)\. ensley\_2019/n2\_BaF2 ~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_BaF2", "material": "BaF2", "file": "BaF2/ensley_2019__n2_BaF2.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "800": 0.15, "2000": 0.2 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "form": "bulk" } } Table 2 \(p\. 37947\), this work \(the unlettered values\), n2 in 1e\-16 cm2/W; 3\-mm Eksma crystal\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/eq1\_BaF2 ~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "eq1_BaF2", "material": "BaF2", "file": "BaF2/ensley_2019__eq1_BaF2.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "check", "parameters": { "part": "unknown", "coefficient": "self" } } Table 2, column 'Eq\. \(1\)' \(p\. 37947\)\: the Boling\-Glass\-Owyoung prediction \(formula bgo\_eq1\), n\_d and nu\_d from the dispersion relations of Refs\. \[47\]\-\[50\], converted to cm2/W with n2\(mks\) = n2\(esu\) 40 pi/\(c n0\); the n0 \(and so the wavelength\) used for the conversion is not stated\. ensley\_2019/n2\_CaF2 ~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_CaF2", "material": "CaF2", "file": "CaF2/ensley_2019__n2_CaF2.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "800": 0.15, "2000": 0.2 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "form": "bulk" } } Table 2 \(p\. 37947\), this work \(the unlettered values\), n2 in 1e\-16 cm2/W; 3\-mm Eksma crystal\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/eq1\_CaF2 ~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "eq1_CaF2", "material": "CaF2", "file": "CaF2/ensley_2019__eq1_CaF2.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "check", "parameters": { "part": "unknown", "coefficient": "self" } } Table 2, column 'Eq\. \(1\)' \(p\. 37947\)\: the Boling\-Glass\-Owyoung prediction \(formula bgo\_eq1\), n\_d and nu\_d from the dispersion relations of Refs\. \[47\]\-\[50\], converted to cm2/W with n2\(mks\) = n2\(esu\) 40 pi/\(c n0\); the n0 \(and so the wavelength\) used for the conversion is not stated\. ensley\_2019/n2\_MgF2 ~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_MgF2", "material": "MgF2", "file": "MgF2/ensley_2019__n2_MgF2.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "800": 0.15, "2000": 0.2 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "form": "bulk" } } Table 2 \(p\. 37947\), this work \(the unlettered values\), n2 in 1e\-16 cm2/W; 3\-mm Eksma crystal\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/eq1\_MgF2 ~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "eq1_MgF2", "material": "MgF2", "file": "MgF2/ensley_2019__eq1_MgF2.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "check", "parameters": { "part": "unknown", "coefficient": "self" } } Table 2, column 'Eq\. \(1\)' \(p\. 37947\)\: the Boling\-Glass\-Owyoung prediction \(formula bgo\_eq1\), n\_d and nu\_d from the dispersion relations of Refs\. \[47\]\-\[50\], converted to cm2/W with n2\(mks\) = n2\(esu\) 40 pi/\(c n0\); the n0 \(and so the wavelength\) used for the conversion is not stated\. ensley\_2019/n2\_LiF ~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_LiF", "material": "LiF", "file": "LiF/ensley_2019__n2_LiF.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "800": 0.15, "2000": 0.2 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "form": "bulk" } } Table 2 \(p\. 37947\), this work \(the unlettered values\), n2 in 1e\-16 cm2/W; 3\-mm Eksma crystal\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/eq1\_LiF ~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "eq1_LiF", "material": "LiF", "file": "LiF/ensley_2019__eq1_LiF.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "check", "parameters": { "part": "unknown", "coefficient": "self" } } Table 2, column 'Eq\. \(1\)' \(p\. 37947\)\: the Boling\-Glass\-Owyoung prediction \(formula bgo\_eq1\), n\_d and nu\_d from the dispersion relations of Refs\. \[47\]\-\[50\], converted to cm2/W with n2\(mks\) = n2\(esu\) 40 pi/\(c n0\); the n0 \(and so the wavelength\) used for the conversion is not stated\. ensley\_2019/n2\_SiO2 ~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_SiO2", "material": "SiO2", "file": "SiO2/ensley_2019__n2_SiO2.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "800": 0.15, "2000": 0.2 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "form": "bulk" } } Table 2 \(p\. 37947\), this work \(the unlettered values\), n2 in 1e\-16 cm2/W; 1\-mm Thorlabs window\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/eq1\_SiO2 ~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "eq1_SiO2", "material": "SiO2", "file": "SiO2/ensley_2019__eq1_SiO2.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "check", "parameters": { "part": "unknown", "coefficient": "self" } } Table 2, column 'Eq\. \(1\)' \(p\. 37947\)\: the Boling\-Glass\-Owyoung prediction \(formula bgo\_eq1\), n\_d and nu\_d from the dispersion relations of Refs\. \[47\]\-\[50\], converted to cm2/W with n2\(mks\) = n2\(esu\) 40 pi/\(c n0\); the n0 \(and so the wavelength\) used for the conversion is not stated\. ensley\_2019/n2\_BK7 ~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_BK7", "material": "BK7", "file": "BK7/ensley_2019__n2_BK7.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "800": 0.15, "2000": 0.2 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "form": "bulk" } } Table 2 \(p\. 37947\), this work \(the unlettered values\), n2 in 1e\-16 cm2/W; 1\-mm Thorlabs window\. 'BK7' as printed \(Thorlabs WG11010\); Schott BK7 or N\-BK7 not stated\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/eq1\_BK7 ~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "eq1_BK7", "material": "BK7", "file": "BK7/ensley_2019__eq1_BK7.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "check", "parameters": { "part": "unknown", "coefficient": "self" } } Table 2, column 'Eq\. \(1\)' \(p\. 37947\)\: the Boling\-Glass\-Owyoung prediction \(formula bgo\_eq1\), n\_d and nu\_d from the dispersion relations of Refs\. \[47\]\-\[50\], converted to cm2/W with n2\(mks\) = n2\(esu\) 40 pi/\(c n0\); the n0 \(and so the wavelength\) used for the conversion is not stated\. ensley\_2019/lit\_BaF2\_a ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_BaF2_a", "material": "BaF2", "file": "BaF2/ensley_2019__lit_BaF2_a.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "M. Sheik-Bahae, A. A. Said, T.-H. Wei, D. J. Hagan, and E. W. Van Stryland, IEEE J. Quantum Electron. 26(4), 760-769 (1990)" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'a' \(Ref\. \[11\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_BaF2\_b ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_BaF2_b", "material": "BaF2", "file": "BaF2/ensley_2019__lit_BaF2_b.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "desalvo_1996" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'b' \(Ref\. \[37\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. DeSalvo's own text value at 532 nm is 2\.1e\-16 cm2/W; 1\.4 at 1\.06 um is DeSalvo's 5\.0e\-14 esu converted\. ensley\_2019/lit\_BaF2\_c ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_BaF2_c", "material": "BaF2", "file": "BaF2/ensley_2019__lit_BaF2_c.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "R. DeSalvo, M. Sheik-Bahae, A. A. Said, D. J. Hagan, and E. W. Van Stryland, Opt. Lett. 18(3), 194-196 (1993)" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'c' \(Ref\. \[36\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. Two values at 532 nm \(2\.1 and 3\.2; rows 532 and 532\-2\), presumably two orientations of the anisotropy study; the table does not say\. ensley\_2019/lit\_BaF2\_e ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_BaF2_e", "material": "BaF2", "file": "BaF2/ensley_2019__lit_BaF2_e.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "R. Adair, L. L. Chase, and S. A. Payne, Optical Materials 1(3), 185-194 (1992)" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'e' \(Ref\. \[39\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_BaF2\_g ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_BaF2_g", "material": "BaF2", "file": "BaF2/ensley_2019__lit_BaF2_g.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "D. Milam, M. J. Weber, and A. J. Glass, Appl. Phys. Lett. 31(12), 822-825 (1977)" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'g' \(Ref\. \[41\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_BaF2\_h ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_BaF2_h", "material": "BaF2", "file": "BaF2/ensley_2019__lit_BaF2_h.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "adair_1989" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'h' \(Ref\. \[18\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_CaF2\_d ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_CaF2_d", "material": "CaF2", "file": "CaF2/ensley_2019__lit_CaF2_d.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "M. Levenson, IEEE J. Quantum Electron. 10(2), 110-115 (1974)" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'd' \(Ref\. \[38\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_CaF2\_f ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_CaF2_f", "material": "CaF2", "file": "CaF2/ensley_2019__lit_CaF2_f.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "Y. Guo, S. Lu, L. Su, C. Zhao, H. Zhang, and S. Wen, Appl. Opt. 54(4), 953-958 (2015)" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'f' \(Ref\. \[40\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_CaF2\_g ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_CaF2_g", "material": "CaF2", "file": "CaF2/ensley_2019__lit_CaF2_g.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "D. Milam, M. J. Weber, and A. J. Glass, Appl. Phys. Lett. 31(12), 822-825 (1977)" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'g' \(Ref\. \[41\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_CaF2\_h ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_CaF2_h", "material": "CaF2", "file": "CaF2/ensley_2019__lit_CaF2_h.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "adair_1989" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'h' \(Ref\. \[18\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_CaF2\_i ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_CaF2_i", "material": "CaF2", "file": "CaF2/ensley_2019__lit_CaF2_i.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "kabacinski_2019" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'i' \(Ref\. \[42\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. Measured at 1\.03 um \(mark \*\); Kabacinski's Table 1 prints 1\.71 \+\- 0\.09\. ensley\_2019/lit\_MgF2\_a ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_MgF2_a", "material": "MgF2", "file": "MgF2/ensley_2019__lit_MgF2_a.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "M. Sheik-Bahae, A. A. Said, T.-H. Wei, D. J. Hagan, and E. W. Van Stryland, IEEE J. Quantum Electron. 26(4), 760-769 (1990)" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'a' \(Ref\. \[11\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_MgF2\_b ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_MgF2_b", "material": "MgF2", "file": "MgF2/ensley_2019__lit_MgF2_b.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "desalvo_1996" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'b' \(Ref\. \[37\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_MgF2\_e ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_MgF2_e", "material": "MgF2", "file": "MgF2/ensley_2019__lit_MgF2_e.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "R. Adair, L. L. Chase, and S. A. Payne, Optical Materials 1(3), 185-194 (1992)" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'e' \(Ref\. \[39\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_MgF2\_g ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_MgF2_g", "material": "MgF2", "file": "MgF2/ensley_2019__lit_MgF2_g.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "D. Milam, M. J. Weber, and A. J. Glass, Appl. Phys. Lett. 31(12), 822-825 (1977)" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'g' \(Ref\. \[41\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_MgF2\_h ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_MgF2_h", "material": "MgF2", "file": "MgF2/ensley_2019__lit_MgF2_h.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "adair_1989" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'h' \(Ref\. \[18\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_LiF\_b ~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_LiF_b", "material": "LiF", "file": "LiF/ensley_2019__lit_LiF_b.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "desalvo_1996" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'b' \(Ref\. \[37\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. DeSalvo's esu values converted with n0 ~ 1\.39 \(DeSalvo's Table II prints 1\.3, which would give 0\.61, 0\.81\)\. ensley\_2019/lit\_LiF\_d ~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_LiF_d", "material": "LiF", "file": "LiF/ensley_2019__lit_LiF_d.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "M. Levenson, IEEE J. Quantum Electron. 10(2), 110-115 (1974)" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'd' \(Ref\. \[38\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_LiF\_e ~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_LiF_e", "material": "LiF", "file": "LiF/ensley_2019__lit_LiF_e.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "R. Adair, L. L. Chase, and S. A. Payne, Optical Materials 1(3), 185-194 (1992)" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'e' \(Ref\. \[39\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_LiF\_g ~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_LiF_g", "material": "LiF", "file": "LiF/ensley_2019__lit_LiF_g.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "D. Milam, M. J. Weber, and A. J. Glass, Appl. Phys. Lett. 31(12), 822-825 (1977)" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'g' \(Ref\. \[41\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_LiF\_h ~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_LiF_h", "material": "LiF", "file": "LiF/ensley_2019__lit_LiF_h.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "adair_1989" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'h' \(Ref\. \[18\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_SiO2\_j ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_SiO2_j", "material": "SiO2", "file": "SiO2/ensley_2019__lit_SiO2_j.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "milam_1998" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'j' \(Ref\. \[43\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. Milam's recommended values are 3\.0 at 527 nm and 2\.74 at 1053 nm \(milam\_1998\); Ensley lists them under 532 nm and 1\.06 um\. ensley\_2019/lit\_BK7\_d ~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_BK7_d", "material": "BK7", "file": "BK7/ensley_2019__lit_BK7_d.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "M. Levenson, IEEE J. Quantum Electron. 10(2), 110-115 (1974)" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'd' \(Ref\. \[38\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_BK7\_k ~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_BK7_k", "material": "BK7", "file": "BK7/ensley_2019__lit_BK7_k.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "X. Lu, Q. Liu, Z. Liu, S. Sun, P. Ding, B. Ding, and B. Hu, Appl. Opt. 51(12), 2045-2050 (2012)" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'k' \(Ref\. \[44\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. ensley\_2019/lit\_BK7\_l ~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_BK7_l", "material": "BK7", "file": "BK7/ensley_2019__lit_BK7_l.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "milam_1976" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'l' \(Ref\. \[45\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. milam\_1976 Table I\: Schott BK 7, gamma = 3\.43 \+\- 0\.34 x 10^\-16 cm^2/W at 1064 nm \(agrees\)\. ensley\_2019/lit\_BK7\_m ~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lit_BK7_m", "material": "BK7", "file": "BK7/ensley_2019__lit_BK7_m.csv", "table": "tbl_67677bf4d75b", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-16, "abscissa_unit": "nm", "use": "reproduced", "reproduced_from": [ "adair_1987" ], "parameters": { "part": "unknown", "coefficient": "self" } } Table 2 \(p\. 37947\), literature values marked 'm' \(Ref\. \[46\]\), as Ensley lists them \(column 1\.06 um written as 1060 nm; marks \+, \#, \* give 525, 810, 1030 nm\)\. adair\_1987 Table 2\: BK\-7, 1\.30 x 10^\-13 esu at 1\.064 um; 40 pi n2/\(c n\) with n = 1\.517 gives 3\.59 x 10^\-16 cm^2/W \(agrees with 3\.6\)\. ensley\_2019/n2\_AMTIR\-1 ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_AMTIR-1", "material": "AMTIR-1", "file": "AMTIR-1/ensley_2019__n2_AMTIR-1.csv", "table": "tbl_a359645a6ee3", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-14, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "2000": 0.2, "3900": 0.25 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "polarization": "linear", "form": "bulk" } } Table 3 \(p\. 37948\), chalcogenide glass \(Amorphous Materials, Inc\.\), n2 in 1e\-14 cm2/W\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/n2\_AMTIR\-2 ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_AMTIR-2", "material": "AMTIR-2", "file": "AMTIR-2/ensley_2019__n2_AMTIR-2.csv", "table": "tbl_a359645a6ee3", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-14, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "2000": 0.2, "3900": 0.25 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "polarization": "linear", "form": "bulk" } } Table 3 \(p\. 37948\), chalcogenide glass \(Amorphous Materials, Inc\.\), n2 in 1e\-14 cm2/W\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/n2\_AMTIR\-4 ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_AMTIR-4", "material": "AMTIR-4", "file": "AMTIR-4/ensley_2019__n2_AMTIR-4.csv", "table": "tbl_a359645a6ee3", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-14, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "2000": 0.2, "3900": 0.25 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "polarization": "linear", "form": "bulk" } } Table 3 \(p\. 37948\), chalcogenide glass \(Amorphous Materials, Inc\.\), n2 in 1e\-14 cm2/W\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/n2\_AMTIR\-5 ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_AMTIR-5", "material": "AMTIR-5", "file": "AMTIR-5/ensley_2019__n2_AMTIR-5.csv", "table": "tbl_a359645a6ee3", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-14, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "2000": 0.2, "3900": 0.25 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "polarization": "linear", "form": "bulk" } } Table 3 \(p\. 37948\), chalcogenide glass \(Amorphous Materials, Inc\.\), n2 in 1e\-14 cm2/W\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/n2\_AMTIR\-6 ~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "n2_AMTIR-6", "material": "AMTIR-6", "file": "AMTIR-6/ensley_2019__n2_AMTIR-6.csv", "table": "tbl_a359645a6ee3", "quantity": "nonlinear_index", "unit": "cm2/W", "scale": 1e-14, "abscissa_unit": "nm", "columns": { "pulse_fs": "fs" }, "use": "primary", "uncertainty": { "relative_rows": { "2000": 0.2, "3900": 0.25 }, "level": "not stated" }, "parameters": { "part": "unknown", "coefficient": "self", "technique": "Z-scan", "polarization": "linear", "form": "bulk" } } Table 3 \(p\. 37948\), chalcogenide glass \(Amorphous Materials, Inc\.\), n2 in 1e\-14 cm2/W\. pulse\_fs\: the FWHM at that wavelength \(p\. 37941; ~100 fs at 800 nm, the amplifier's pulse\)\. ensley\_2019/beta\_GaSb ~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "beta_GaSb", "material": "GaSb", "table": "text", "quantity": "two_photon_absorption_coefficient", "unit": "cm/GW", "abscissa_unit": "nm", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "technique": "Z-scan (open aperture)", "pulse_fs": 90, "form": "bulk" } } 1 inline points in the source record. Text\: 'the simultaneously obtained OA Z\-scans were fit with alpha2,GaSb = \(110 \+\- 22\) cm/GW using alpha0 = 0\.22 cm^\-1, a factor of ~1\.7 larger than the value reported in \[27\] at 2\.05 um' \(p\. 37943\)\. alpha2 of alpha\(I\) = alpha0 \+ alpha2 I \(p\. 37941\), i\.e\. beta; 90\-fs pulses at 2 um; whether reflection losses were removed is not stated\. ensley\_2019/beta\_Si ~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "beta_Si", "material": "Si", "table": "text", "quantity": "two_photon_absorption_coefficient", "unit": "cm/GW", "abscissa_unit": "nm", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "technique": "Z-scan (open aperture)", "pulse_fs": 90, "form": "bulk" } } 1 inline points in the source record. Text\: 'the OA Z\-scans were fit with alpha2,Si = \(0\.85 \+\- 0\.17\) cm/GW' \(p\. 37945\); roughly twice Bristow et al\.'s ~0\.4 cm/GW \[28\]\. alpha2 of alpha\(I\) = alpha0 \+ alpha2 I \(p\. 37941\), i\.e\. beta; 90\-fs pulses at 2 um; whether reflection losses were removed is not stated\. ensley\_2019/beta\_Ge ~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "beta_Ge", "material": "Ge", "table": "text", "quantity": "two_photon_absorption_coefficient", "unit": "cm/GW", "abscissa_unit": "nm", "use": "primary", "uncertainty": { "column": true, "level": "not stated" }, "parameters": { "technique": "Z-scan (open aperture)", "pulse_fs": 90, "form": "bulk" } } 1 inline points in the source record. Text\: 'the OA Z\-scans were fit with alpha2,Ge = \(85 \+\- 17\) cm/GW \(in agreement with the value of 71cm/GW reported in \[27\] at 2\.05 um\)' \(p\. 37945\)\. alpha2 of alpha\(I\) = alpha0 \+ alpha2 I \(p\. 37941\), i\.e\. beta; 90\-fs pulses at 2 um; whether reflection losses were removed is not stated\. Formulas -------- ensley\_2019/bgo\_eq1 ~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "bgo_eq1", "equation": "Eq. (1), p. 37946", "printed": "n2(esu) = 68 (n_d - 1)(n_d^2 + 2)^2 / {nu_d [1.517 + (n_d^2 + 2)(n_d + 1) nu_d / (6 n_d)]^(1/2)} 10^-13; n2(mks) = n2(esu)(40 pi)/(c n0)", "variable": "n_d, the index at the Fraunhofer d line (587.56 nm); nu_d = (n_d - 1)/(n_F - n_C), F = 486.13 nm, C = 656.27 nm; c the speed of light", "coefficients": { "K": "68", "a": "1.517" }, "reproduced_from": [ "boling_1978" ], "check": "Not reproduced exactly: n_d and nu_d come from the dispersion relations of Refs. [47]-[50] and the n0 of the conversion is not stated. Rough check with Boling et al.'s own Table III inputs (boling_1978: fused silica n_d = 1.458, nu_d = 70; BK-7 1.517, 64): 8.33e-14 esu -> 2.41e-16 cm2/W (n0 = 1.45) against the column's 2.5; 1.15e-13 esu -> 3.20e-16 (n0 = 1.51) against 3.2. Computed 2026-09-26." } The Boling\-Glass\-Owyoung empirical formula \(Ref\. \[35\]\), printed here without the K symbol \(K = 68\)\. Values in Table 2's 'Eq\. \(1\)' column \(datasets eq1\_\*\)\. ensley\_2019/lines\_eq2 ~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "lines_eq2", "equation": "Eq. (2), p. 37947", "printed": "n2(cm^2/W) = 3.4 (n0^2 + 2)^3 (n0^2 - 1) d^2 / (n0^2 E_s^2) 10^-16", "variable": "d, the mean cation-anion bond length in angstrom; E_s, the Sellmeier gap in eV; n0 the linear index", "coefficients": { "prefactor": "3.4", "E_s_As2S3": "5.3", "d_As2S3": "0.228 nm" }, "reproduced_from": [ "M. E. Lines, J. Appl. Phys. 69(10), 6876-6884 (1991)" ], "check": "For As2S3 (AMTIR-6) with E_s = 5.3 eV and d = 0.228 nm [54, 55]: n0 = 2.43 (2 um, from Ref. [56]) gives 2.58e-14 cm2/W, printed '2.5 x 10^-14'; n0 = 2.41 (3.9 um) gives 2.48e-14, printed '2.4 x 10^-14' (pp. 37947-37948). Both printed values are 3-4 % below the formula, as if truncated rather than rounded; the formula as printed is otherwise reproduced. Computed 2026-09-26." } Lines's empirical relation for chalcogenide glasses \(Ref\. \[54\]\)\. The paper compares it with AMTIR\-6 \(2\.5 at 2 um agrees; 8\.3 \+\- 2 at 3\.9 um does not\)\. Corrections ----------- No dataset errata are recorded in this source record. Formula corrections, where recorded, appear with their formulas above. Curation notes may also discuss corrections or unresolved interpretation. Consult the :doc:`review register ` for the checks and decisions.