nibbering_1997#
E. T. J. Nibbering, G. Grillon, M. A. Franco, B. S. Prade and A. Mysyrowicz, “Determination of the inertial contribution to the nonlinear refractive index of air, N2, and O2 by use of unfocused high-intensity femtosecond laser pulses”, J. Opt. Soc. Am. B 14, 650 (1997)
Source record · Catalogue · Review register
Source kind: measurement
Recorded technique: Spectral analysis after nonlinear propagation: unfocused 120-fs, 800-nm, 45-mJ Ti:sapphire pulses (~200 GW/cm2 at the beam centre) through a 2.5-m tube of gas at 0.2-3 bar (MgF2 windows, their SPM removed by using the empty-tube spectrum as reference); the centre of the beam (1-mm diaphragm) is analysed by an iterative phase-retrieval algorithm with an instantaneous nonlinearity (Ar, Xe, SF6) or an instantaneous plus rotational-Raman response (N2, O2, air) as free parameters (pp. 650-658).
Materials in structured entries: Ar, CH4, H2, He, N2, Ne, O2, SF6, Xe
Dataset quantities: nonlinear_index, polarizability_anisotropy
Contents: 27 datasets; 0 formulas.
Curation notes#
Journal pages 650-660 = PDF pages 1-11. Identity checked against the first page. Air is not curated (its values are skipped); SF6 is curated.
DEFINITIONS (pp. 653-655; SI-style, not stated explicitly). Eq. (1): P(3)(t) = E(t) int_0^inf |E(t - tau)|^2 R(tau) dtau, E(t) = A(t) exp(-i omega t) (Eq. (2), complex field); Eq. (3): R(t) = sigma(omega) delta(t) + <(2 pi/h)[alpha(omega, t), alpha(omega, 0)]>, sigma the electronic hyperpolarizability tensor. Eq. (10): phi_NL(t, z) = (2 pi / lambda) z int n2(tau) |E(t - tau, 0)|^2 dtau. Eqs. (11)-(12): Delta n_total = Delta n_instant + Delta n_rot-Raman, Delta n_instant = n2,instant I(t), ‘The electronic and the rotational Rayleigh contributions give rise to an instantaneous nonlinearity’ (p. 654): n2,instant is NOT purely electronic for N2 and O2 (it includes the rotational Rayleigh, Delta J = 0, part). Eq. (13): Delta n_2,rot-Raman(t) = Im[n2,rot-Raman sum_J F_J int I(t - tau) exp(-i omega_J tau) dtau]; Eq. (14): n2,rot-Raman = 32 pi^2 N beta(omega) / (n0 h c), beta = alpha_par - alpha_perp (Eq. (15)); Eqs. (16)-(20): F_J = (rho_(J+2) - rho_J) Z_J (J + 2)(J + 1)/(2J + 3), thermal rho_J, Z_J = 1 (odd), 2 (even) for N2, 1 (odd), 0 (even) for O2, omega_J = 4 pi c B (2J + 3). Single-beam self-phase modulation: n2 is the SELF coefficient.
TABLE 3 (p. 658; JSON cells, image checked; tools/extract/nibbering_1997.py): ‘Values of the Nonlinear Refractive-Index Parameters of Gases Obtained with the Nonlinear Propagation Method by Use of 120-fs Pulses at 800 nm’, gas at ‘1.0 bar/300 K’: n2,instant (1e-23 m2/W) Ar 1.4 +- 0.2, Xe 8.1 +- 0.8, SF6 1.6 +- 0.3, N2 2.3 +- 0.3, O2 5.1 +- 0.7 (air 2.9 +- 0.4, an ‘effective value calculated from the data for N2, O2, and Ar’); n2,rot-Raman (1e-28 m2/J; not extracted, no quantity) N2 2.3 +- 0.4, O2 8.5 +- 2 (air 3.6 +- 0.8); beta(omega) (1e-40 C2 m2/J) derived N2 0.74, O2 1.4, literature (Ref. 20 = lin_1976) 1.0, 1.27. The phase-retrieval ambiguity made the algorithm find a 60-70-fs pulse instead of 120 fs (p. 657); ‘Note added in revision’ (p. 659): the ambiguity was later solved and the relative values confirmed. Effective n2 for 120-fs pulses (p. 658, text, ‘n2,effective’): N2 3 x 10^-23, O2 8 x 10^-23 m2/W (air 4 x 10^-23).
PART. Ar, Xe: ‘electronic’ (atoms, instantaneous only). SF6: ‘electronic_vibrational’ (spherical top, no rotational Raman; the adiabatic vibrational part is inside). N2, O2: ‘instantaneous’ (electronic plus rotational Rayleigh, as the paper defines it; the common trap: ‘instantaneous’ is not ‘electronic’; wahlstrand_2012 finds 7.4 and 9.5 x 1e-20 cm2/W against 23 and 51 here).
TABLE 1 (p. 651; image checked): literature values at 1.0 bar, reproduced: Shaw et al. (Ref. 9, Opt. Commun. 103, 153 (1993) = shaw_1993) at 248 nm with 10-ps pulses, 300 K: N2 7.5 +- 2.5, O2 30 +- 12, Ar 2.9 +- 1.0, CH4 11 +- 4, Ne 0.06 +- 0.02, He -0.02 +- 0.01; Lehmberg et al. (Ref. 8, Opt. Commun. 121, 78 (1995), not in the library) Xe -963 +- 112 (SPA, SSPM; ‘the large negative value for Xe is due to a two-photon resonance at 249.6 nm’, p. 657). Air rows (Refs. 5, 6, 7, 9) skipped (Ref. 6 = pennington_1989: 4.2 +- 1.1, 1 ns, 1053 nm, 293 K). Structural fixes in the script: the symbol font’s ‘6’ for +- and ‘2’ for the minus sign (He ‘20.02 6 0.01’ = -0.02 +- 0.01, Xe ‘2963 6 112’ = -963 +- 112; image checked).
TABLE 2 (p. 653; image checked): ‘Values of the Nonlinear Refractive Index n2,total Together with the Electronic Contribution n2,electronic of Gases, Both Estimated from Published Data on the dc Kerr Effect [Carusotto] and Electric-Field-Induced Second-Harmonic Generation [Mizrahi and Shelton] (Taken from Ref. 1 [hellwarth_1990])’, 1 atm, 293 K, 800 nm; electronic ‘Estimated for the long-wavelength limit (i.e., no dispersion effects included)’. Check (2026-09-26): n2,electronic = (4 pi / c) 12 pi (sigma / 8) x 1e7 with hellwarth_1990’s sigma gives N2 0.721 (0.720 printed), O2 0.747 (0.746), Ar 0.936 (0.936), H2 0.551, He 0.0348 x 1e-23 m2/W: Table 2’s electronic column is Hellwarth’s Table II converted. The total column (N2 4.52) lies between Hellwarth’s c1111 at 694 nm (4.63) and 1053 nm (4.44) converted likewise: formula-B values near 800 nm. Reproduced (converted) from hellwarth_1990.
Recorded bibliographic identity status: VALIDATED_WITH_WARNINGS. This concerns identification of the source; it does not establish the scientific correctness of its contents.
Datasets#
nibbering_1997/n2_instant_Ar#
{
"id": "n2_instant_Ar",
"material": "Ar",
"file": "Ar/nibbering_1997__n2_instant_Ar.csv",
"table": "tbl_e8b12922f707",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 100000.0,
"temperature_k": 300.0
},
"use": "primary",
"uncertainty": {
"column": true,
"level": "not stated"
},
"parameters": {
"part": "electronic",
"coefficient": "self",
"pulse_fs": 120
}
}
Table 3, n2,instant (1e-23 m2/W) at 1.0 bar, 300 K, 120-fs pulses at 800 nm. Part ‘electronic’ (source notes). Self coefficient.
nibbering_1997/n2_instant_Xe#
{
"id": "n2_instant_Xe",
"material": "Xe",
"file": "Xe/nibbering_1997__n2_instant_Xe.csv",
"table": "tbl_e8b12922f707",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 100000.0,
"temperature_k": 300.0
},
"use": "primary",
"uncertainty": {
"column": true,
"level": "not stated"
},
"parameters": {
"part": "electronic",
"coefficient": "self",
"pulse_fs": 120
}
}
Table 3, n2,instant (1e-23 m2/W) at 1.0 bar, 300 K, 120-fs pulses at 800 nm. Part ‘electronic’ (source notes). Self coefficient.
nibbering_1997/n2_instant_SF6#
{
"id": "n2_instant_SF6",
"material": "SF6",
"file": "SF6/nibbering_1997__n2_instant_SF6.csv",
"table": "tbl_e8b12922f707",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 100000.0,
"temperature_k": 300.0
},
"use": "primary",
"uncertainty": {
"column": true,
"level": "not stated"
},
"parameters": {
"part": "electronic_vibrational",
"coefficient": "self",
"pulse_fs": 120
}
}
Table 3, n2,instant (1e-23 m2/W) at 1.0 bar, 300 K, 120-fs pulses at 800 nm. Part ‘electronic_vibrational’ (source notes). Self coefficient.
nibbering_1997/n2_instant_N2#
{
"id": "n2_instant_N2",
"material": "N2",
"file": "N2/nibbering_1997__n2_instant_N2.csv",
"table": "tbl_e8b12922f707",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 100000.0,
"temperature_k": 300.0
},
"use": "primary",
"uncertainty": {
"column": true,
"level": "not stated"
},
"parameters": {
"part": "instantaneous",
"coefficient": "self",
"pulse_fs": 120
}
}
Table 3, n2,instant (1e-23 m2/W) at 1.0 bar, 300 K, 120-fs pulses at 800 nm. Part ‘instantaneous’ (source notes): includes the rotational Rayleigh contribution. Self coefficient.
nibbering_1997/n2_instant_O2#
{
"id": "n2_instant_O2",
"material": "O2",
"file": "O2/nibbering_1997__n2_instant_O2.csv",
"table": "tbl_e8b12922f707",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 100000.0,
"temperature_k": 300.0
},
"use": "primary",
"uncertainty": {
"column": true,
"level": "not stated"
},
"parameters": {
"part": "instantaneous",
"coefficient": "self",
"pulse_fs": 120
}
}
Table 3, n2,instant (1e-23 m2/W) at 1.0 bar, 300 K, 120-fs pulses at 800 nm. Part ‘instantaneous’ (source notes): includes the rotational Rayleigh contribution. Self coefficient.
nibbering_1997/beta_derived_N2#
{
"id": "beta_derived_N2",
"material": "N2",
"file": "N2/nibbering_1997__beta_derived_N2.csv",
"table": "tbl_e8b12922f707",
"quantity": "polarizability_anisotropy",
"unit": "SI",
"scale": 1e-40,
"abscissa_unit": "nm",
"use": "primary"
}
Table 3, beta(omega) ‘Derived’ (1e-40 C2 m2/J = C m2/V, SI polarizability): from the fitted n2,rot-Raman through Eq. (14). ‘reasonable agreement’ with the literature (p. 658); no uncertainty stated.
nibbering_1997/beta_lin_N2#
{
"id": "beta_lin_N2",
"material": "N2",
"file": "N2/nibbering_1997__beta_lin_N2.csv",
"table": "tbl_e8b12922f707",
"quantity": "polarizability_anisotropy",
"unit": "SI",
"scale": 1e-40,
"abscissa_unit": "nm",
"use": "reproduced",
"reproduced_from": [
"lin_1976"
]
}
Table 3, beta(omega) ‘Literature’ (footnote a: Ref. 20 = lin_1976), i.e. Lin et al.’s 9.3 and 11.4 x 1e-25 cm3 converted to SI. Wavelength not stated.
nibbering_1997/beta_derived_O2#
{
"id": "beta_derived_O2",
"material": "O2",
"file": "O2/nibbering_1997__beta_derived_O2.csv",
"table": "tbl_e8b12922f707",
"quantity": "polarizability_anisotropy",
"unit": "SI",
"scale": 1e-40,
"abscissa_unit": "nm",
"use": "primary"
}
Table 3, beta(omega) ‘Derived’ (1e-40 C2 m2/J = C m2/V, SI polarizability): from the fitted n2,rot-Raman through Eq. (14). ‘reasonable agreement’ with the literature (p. 658); no uncertainty stated.
nibbering_1997/beta_lin_O2#
{
"id": "beta_lin_O2",
"material": "O2",
"file": "O2/nibbering_1997__beta_lin_O2.csv",
"table": "tbl_e8b12922f707",
"quantity": "polarizability_anisotropy",
"unit": "SI",
"scale": 1e-40,
"abscissa_unit": "nm",
"use": "reproduced",
"reproduced_from": [
"lin_1976"
]
}
Table 3, beta(omega) ‘Literature’ (footnote a: Ref. 20 = lin_1976), i.e. Lin et al.’s 9.3 and 11.4 x 1e-25 cm3 converted to SI. Wavelength not stated.
nibbering_1997/literature_N2#
{
"id": "literature_N2",
"material": "N2",
"file": "N2/nibbering_1997__literature_N2.csv",
"table": "tbl_5f0a7a95fe44",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 100000.0,
"temperature_k": 300.0
},
"use": "reproduced",
"reproduced_from": [
"shaw_1993"
],
"uncertainty": {
"column": true,
"level": "not stated"
},
"parameters": {
"part": "total",
"coefficient": "self",
"pulse_fs": 10000
}
}
Table 1, Ref. 9 (Shaw et al. 1993 = shaw_1993): SSPM at 248 nm, 10-ps pulses, 1.0 bar, 300 K. The 10-ps pulses include the adiabatic rotational response of molecules: part ‘total’.
nibbering_1997/literature_O2#
{
"id": "literature_O2",
"material": "O2",
"file": "O2/nibbering_1997__literature_O2.csv",
"table": "tbl_5f0a7a95fe44",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 100000.0,
"temperature_k": 300.0
},
"use": "reproduced",
"reproduced_from": [
"shaw_1993"
],
"uncertainty": {
"column": true,
"level": "not stated"
},
"parameters": {
"part": "total",
"coefficient": "self",
"pulse_fs": 10000
}
}
Table 1, Ref. 9 (Shaw et al. 1993 = shaw_1993): SSPM at 248 nm, 10-ps pulses, 1.0 bar, 300 K. The 10-ps pulses include the adiabatic rotational response of molecules: part ‘total’.
nibbering_1997/literature_Ar#
{
"id": "literature_Ar",
"material": "Ar",
"file": "Ar/nibbering_1997__literature_Ar.csv",
"table": "tbl_5f0a7a95fe44",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 100000.0,
"temperature_k": 300.0
},
"use": "reproduced",
"reproduced_from": [
"shaw_1993"
],
"uncertainty": {
"column": true,
"level": "not stated"
},
"parameters": {
"part": "total",
"coefficient": "self",
"pulse_fs": 10000
}
}
Table 1, Ref. 9 (Shaw et al. 1993 = shaw_1993): SSPM at 248 nm, 10-ps pulses, 1.0 bar, 300 K. The 10-ps pulses include the adiabatic rotational response of molecules: part ‘total’.
nibbering_1997/literature_CH4#
{
"id": "literature_CH4",
"material": "CH4",
"file": "CH4/nibbering_1997__literature_CH4.csv",
"table": "tbl_5f0a7a95fe44",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 100000.0,
"temperature_k": 300.0
},
"use": "reproduced",
"reproduced_from": [
"shaw_1993"
],
"uncertainty": {
"column": true,
"level": "not stated"
},
"parameters": {
"part": "total",
"coefficient": "self",
"pulse_fs": 10000
}
}
Table 1, Ref. 9 (Shaw et al. 1993 = shaw_1993): SSPM at 248 nm, 10-ps pulses, 1.0 bar, 300 K. The 10-ps pulses include the adiabatic rotational response of molecules: part ‘total’.
nibbering_1997/literature_Ne#
{
"id": "literature_Ne",
"material": "Ne",
"file": "Ne/nibbering_1997__literature_Ne.csv",
"table": "tbl_5f0a7a95fe44",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 100000.0,
"temperature_k": 300.0
},
"use": "reproduced",
"reproduced_from": [
"shaw_1993"
],
"uncertainty": {
"column": true,
"level": "not stated"
},
"parameters": {
"part": "total",
"coefficient": "self",
"pulse_fs": 10000
}
}
Table 1, Ref. 9 (Shaw et al. 1993 = shaw_1993): SSPM at 248 nm, 10-ps pulses, 1.0 bar, 300 K. The 10-ps pulses include the adiabatic rotational response of molecules: part ‘total’.
nibbering_1997/literature_He#
{
"id": "literature_He",
"material": "He",
"file": "He/nibbering_1997__literature_He.csv",
"table": "tbl_5f0a7a95fe44",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 100000.0,
"temperature_k": 300.0
},
"use": "reproduced",
"reproduced_from": [
"shaw_1993"
],
"uncertainty": {
"column": true,
"level": "not stated"
},
"parameters": {
"part": "total",
"coefficient": "self",
"pulse_fs": 10000
}
}
Table 1, Ref. 9 (Shaw et al. 1993 = shaw_1993): SSPM at 248 nm, 10-ps pulses, 1.0 bar, 300 K. The 10-ps pulses include the adiabatic rotational response of molecules: part ‘total’. He: -0.02 +- 0.01 (minus sign restored from the image).
nibbering_1997/literature_Xe#
{
"id": "literature_Xe",
"material": "Xe",
"file": "Xe/nibbering_1997__literature_Xe.csv",
"table": "tbl_5f0a7a95fe44",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 100000.0,
"temperature_k": 300.0
},
"use": "reproduced",
"reproduced_from": [
"R. H. Lehmberg, C. J. Pawley, A. V. Deniz, M. Klapisch and Y. Leng, Opt. Commun. 121, 78 (1995)"
],
"uncertainty": {
"column": true,
"level": "not stated"
},
"parameters": {
"part": "total",
"coefficient": "self",
"pulse_fs": 10000
}
}
Table 1, Ref. 8 (R. H. Lehmberg et al., Opt. Commun. 121, 78 (1995), not in the library): -963 +- 112 (minus sign restored from the image), 248 nm, 10 ps, two-photon resonance of Xe at 249.6 nm (p. 657): resonantly enhanced and negative.
nibbering_1997/hellwarth_total_N2#
{
"id": "hellwarth_total_N2",
"material": "N2",
"file": "N2/nibbering_1997__hellwarth_total_N2.csv",
"table": "tbl_aa252cc4e383",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 101325.0,
"temperature_k": 293.0
},
"use": "reproduced",
"reproduced_from": [
"hellwarth_1990"
],
"parameters": {
"part": "total",
"coefficient": "self"
}
}
Table 2, n2,total (1e-23 m2/W) at 1 atm, 293 K, 800 nm, ‘Taken from Ref. 1’ (hellwarth_1990), converted from Hellwarth’s c coefficients (source notes): the long-pulse total (electronic + adiabatic rotation and vibration).
nibbering_1997/hellwarth_total_O2#
{
"id": "hellwarth_total_O2",
"material": "O2",
"file": "O2/nibbering_1997__hellwarth_total_O2.csv",
"table": "tbl_aa252cc4e383",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 101325.0,
"temperature_k": 293.0
},
"use": "reproduced",
"reproduced_from": [
"hellwarth_1990"
],
"parameters": {
"part": "total",
"coefficient": "self"
}
}
Table 2, n2,total (1e-23 m2/W) at 1 atm, 293 K, 800 nm, ‘Taken from Ref. 1’ (hellwarth_1990), converted from Hellwarth’s c coefficients (source notes): the long-pulse total (electronic + adiabatic rotation and vibration).
nibbering_1997/hellwarth_total_Ar#
{
"id": "hellwarth_total_Ar",
"material": "Ar",
"file": "Ar/nibbering_1997__hellwarth_total_Ar.csv",
"table": "tbl_aa252cc4e383",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 101325.0,
"temperature_k": 293.0
},
"use": "reproduced",
"reproduced_from": [
"hellwarth_1990"
],
"parameters": {
"part": "total",
"coefficient": "self"
}
}
Table 2, n2,total (1e-23 m2/W) at 1 atm, 293 K, 800 nm, ‘Taken from Ref. 1’ (hellwarth_1990), converted from Hellwarth’s c coefficients (source notes): the long-pulse total (electronic + adiabatic rotation and vibration).
nibbering_1997/hellwarth_total_H2#
{
"id": "hellwarth_total_H2",
"material": "H2",
"file": "H2/nibbering_1997__hellwarth_total_H2.csv",
"table": "tbl_aa252cc4e383",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 101325.0,
"temperature_k": 293.0
},
"use": "reproduced",
"reproduced_from": [
"hellwarth_1990"
],
"parameters": {
"part": "total",
"coefficient": "self"
}
}
Table 2, n2,total (1e-23 m2/W) at 1 atm, 293 K, 800 nm, ‘Taken from Ref. 1’ (hellwarth_1990), converted from Hellwarth’s c coefficients (source notes): the long-pulse total (electronic + adiabatic rotation and vibration).
nibbering_1997/hellwarth_electronic_N2#
{
"id": "hellwarth_electronic_N2",
"material": "N2",
"file": "N2/nibbering_1997__hellwarth_electronic_N2.csv",
"table": "tbl_aa252cc4e383",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 101325.0,
"temperature_k": 293.0
},
"use": "reproduced",
"reproduced_from": [
"hellwarth_1990"
],
"parameters": {
"part": "electronic",
"coefficient": "self"
}
}
Table 2, n2,electronic (1e-23 m2/W), ‘Estimated for the long-wavelength limit (i.e., no dispersion effects included)’: hellwarth_1990’s sigma converted (checked, source notes). The table’s 800-nm column does not apply to it: row LWL, wavelength inf (the long-wavelength limit; set in the script).
nibbering_1997/hellwarth_electronic_O2#
{
"id": "hellwarth_electronic_O2",
"material": "O2",
"file": "O2/nibbering_1997__hellwarth_electronic_O2.csv",
"table": "tbl_aa252cc4e383",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 101325.0,
"temperature_k": 293.0
},
"use": "reproduced",
"reproduced_from": [
"hellwarth_1990"
],
"parameters": {
"part": "electronic",
"coefficient": "self"
}
}
Table 2, n2,electronic (1e-23 m2/W), ‘Estimated for the long-wavelength limit (i.e., no dispersion effects included)’: hellwarth_1990’s sigma converted (checked, source notes). The table’s 800-nm column does not apply to it: row LWL, wavelength inf (the long-wavelength limit; set in the script).
nibbering_1997/hellwarth_electronic_Ar#
{
"id": "hellwarth_electronic_Ar",
"material": "Ar",
"file": "Ar/nibbering_1997__hellwarth_electronic_Ar.csv",
"table": "tbl_aa252cc4e383",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 101325.0,
"temperature_k": 293.0
},
"use": "reproduced",
"reproduced_from": [
"hellwarth_1990"
],
"parameters": {
"part": "electronic",
"coefficient": "self"
}
}
Table 2, n2,electronic (1e-23 m2/W), ‘Estimated for the long-wavelength limit (i.e., no dispersion effects included)’: hellwarth_1990’s sigma converted (checked, source notes). The table’s 800-nm column does not apply to it: row LWL, wavelength inf (the long-wavelength limit; set in the script).
nibbering_1997/hellwarth_electronic_H2#
{
"id": "hellwarth_electronic_H2",
"material": "H2",
"file": "H2/nibbering_1997__hellwarth_electronic_H2.csv",
"table": "tbl_aa252cc4e383",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 101325.0,
"temperature_k": 293.0
},
"use": "reproduced",
"reproduced_from": [
"hellwarth_1990"
],
"parameters": {
"part": "electronic",
"coefficient": "self"
}
}
Table 2, n2,electronic (1e-23 m2/W), ‘Estimated for the long-wavelength limit (i.e., no dispersion effects included)’: hellwarth_1990’s sigma converted (checked, source notes). The table’s 800-nm column does not apply to it: row LWL, wavelength inf (the long-wavelength limit; set in the script).
nibbering_1997/hellwarth_electronic_He#
{
"id": "hellwarth_electronic_He",
"material": "He",
"file": "He/nibbering_1997__hellwarth_electronic_He.csv",
"table": "tbl_aa252cc4e383",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 101325.0,
"temperature_k": 293.0
},
"use": "reproduced",
"reproduced_from": [
"hellwarth_1990"
],
"parameters": {
"part": "electronic",
"coefficient": "self"
}
}
Table 2, n2,electronic (1e-23 m2/W), ‘Estimated for the long-wavelength limit (i.e., no dispersion effects included)’: hellwarth_1990’s sigma converted (checked, source notes). The table’s 800-nm column does not apply to it: row LWL, wavelength inf (the long-wavelength limit; set in the script).
nibbering_1997/n2_effective_N2#
{
"id": "n2_effective_N2",
"material": "N2",
"table": "text",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 100000.0,
"temperature_k": 300.0
},
"use": "check",
"parameters": {
"part": "total",
"coefficient": "self",
"pulse_fs": 120
}
}
1 inline points in the source record.
p. 658: ‘one can estimate an overall effective value n2,effective for 120-fs pulses at 800 nm, which is equal to 3 x 10^-23 m2/W for N2’. An estimate for this pulse duration (electronic plus rotational), one significant figure: ‘check’.
nibbering_1997/n2_effective_O2#
{
"id": "n2_effective_O2",
"material": "O2",
"table": "text",
"quantity": "nonlinear_index",
"unit": "m2/W",
"scale": 1e-23,
"abscissa_unit": "nm",
"state": {
"pressure_pa": 100000.0,
"temperature_k": 300.0
},
"use": "check",
"parameters": {
"part": "total",
"coefficient": "self",
"pulse_fs": 120
}
}
1 inline points in the source record.
p. 658: ‘8 x 10^-23 m2/W for O2’ (n2,effective, 120-fs pulses). As n2_effective_N2.
Formulas#
No formulas are recorded.
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 review register for the checks and decisions.