meissner_2019 ============= C\. Meißner, J\. I\. Hölzer and T\. Seeger, "Determination of N2\-N2 and N2\-O2 S\-branch Raman linewidths using time\-resolved picosecond pure rotational coherent anti\-Stokes Raman scattering", Appl\. Opt\. 58, C47 \(2019\) `Source record `__ · :doc:`Catalogue ` · :doc:`Review register ` DOI: `10\.1364/AO\.58\.000C47 `__ **Source kind:** measurement **Recorded technique:** Picosecond time\-resolved dual\-broadband pure rotational CARS \(pp\. 2\-3\)\: a frequency\-doubled Nd\:YAG probe \(532 nm, about 1 cm\-1, 100 ps\) delayed up to 700 ps against broadband DCM dye pump and Stokes \(626 nm, about 460 cm\-1\), planar BOXCARS, in an electrically heated furnace at 295\-1900 K and ambient pressure, in pure N2 and in air; 500\-shot averages per delay\. Each S\(J''\) time trace fitted with a monoexponential decay from 230 to 667 ps \(after the nonresonant signal has vanished\); the width follows from Eq\. \(1\)\. **Materials in structured entries:** N2 **Dataset quantities:** raman\_linewidth **Contents:** 15 datasets; 0 formulas. Curation notes -------------- Identity checked against the first page \(Appl\. Opt\. 58\(12\), C47\-C54, 2019\)\. Page numbers are pdf pages 1\-7\. Material\: 14N2, S\-branch lines labelled by the lower level J''\. No isotopologue is measured\. WIDTH CONVENTION\. FULL widths\: p\. 2, 'the Raman Lorentzian linewidth Gamma\_J'' \[full width at half\-maximum \(FWHM\)\] is given by Gamma\_J'' = \(2 pi c tau\_CARS,J''\)^\-1' \(Eq\. \(1\)\), tau the decay constant of the CARS signal; table heads 'Gamma\_J''\(FWHM\)'\. UNIT\: the heads print '/10^\-3 cm' \(images checked\), where cm\-1 is meant \(Eq\. \(1\) gives a wavenumber\)\: recorded as unit cm\-1, scale 1e\-3\. PRESSURE\: these are WIDTHS at the measurement pressure, not coefficients per atm\: the heads carry no pressure unit and the measurements were 'at ambient pressure' \(pp\. 3 and 7\), the pressure not given numerically; the same group's holzer\_2021 divides by the pressure and prints per atm\. Recorded with parameters\.pressure = "ambient, not stated numerically" and no state\: how to use them must be decided at review \(about 1 atm; the N2 values at 295 K are about 14 % below herring\_1986's per\-amagat coefficients converted to 1 atm\)\. UNCERTAINTIES\: 'The standard deviation was determined from the 95% confidence intervals of the fitting process' \(pp\. 4 and 6\)\: a fit standard deviation \(recorded as 1 sigma; statistical only\)\. TABLE 2 is N2 IN AIR\. The paper calls these 'N2\-O2 S\-branch Raman linewidths' but they are measured 'in air' \('The resulting N2\-O2 S\-branch Raman linewidths for the gas mixture air', p\. 4; air 'basically considered a mixture of N2 \(79%\) and O2 \(21%\)'\); no separation of the O2 contribution by a mixing rule is made\. Recorded with perturber = "air"\. J'' lines coinciding with O2 lines are excluded \(blank\)\. They are up to 29 % below Table 1's, most at low J'' \(p\. 4\)\. As printed, some values stand out from their neighbours \(not errata; images checked\)\: Table 1 295 K J'' = 23 36\.7 \(22\: 48\.1, 24\: 40\.4\); 870 K J'' = 33 17\.7; 1650 K J'' = 6 49\.6 and J'' = 9 39\.4; Table 2 at 1900 K lies above 1650 K throughout\. The O2 lines in air could not be fitted monoexponentially \(quantum beats, Fig\. 9\)\: no O2 widths here \(holzer\_2021 gives them\)\. Comparisons \(figures only, not extracted\)\: Kliewer et al\. 2012 \(Ref\. 13\) and Miller et al\. 2011 \(Ref\. 16\) S\-branch N2 widths; Fanjoux et al\. 1996 \(Ref\. 33\) and Rahn and Palmer 1986 \(Ref\. 8\) Q\-branch widths at 295 K \(Figs\. 5, 8\)\. **Recorded bibliographic identity status:** VALIDATED\_WITH\_WARNINGS. This concerns identification of the source; it does not establish the scientific correctness of its contents. Datasets -------- meissner\_2019/table1\_self\_295K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_self_295K", "material": "N2", "file": "N2/meissner_2019__table1_self_295K.csv", "table": "tbl_a526fa9af339", "quantity": "raman_linewidth", "unit": "cm-1", "scale": 0.001, "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "1 sigma" }, "parameters": { "transition": "S(J''), J'' the lower level, per row", "width": "fwhm", "perturber": "self", "temperature_k": 295, "pressure": "ambient, not stated numerically" } } Table 1 \(p\. 5\), 295 K\: FWHM of the S\(J''\) lines of pure N2 at ambient pressure, 1e\-3 cm\-1 \(printed '10^\-3 cm'\), from the monoexponential coherence decay; \+\- a fit standard deviation\. meissner\_2019/table1\_self\_500K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_self_500K", "material": "N2", "file": "N2/meissner_2019__table1_self_500K.csv", "table": "tbl_a526fa9af339", "quantity": "raman_linewidth", "unit": "cm-1", "scale": 0.001, "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "1 sigma" }, "parameters": { "transition": "S(J''), J'' the lower level, per row", "width": "fwhm", "perturber": "self", "temperature_k": 500, "pressure": "ambient, not stated numerically" } } Table 1 \(p\. 5\), 500 K\: FWHM of the S\(J''\) lines of pure N2 at ambient pressure, 1e\-3 cm\-1 \(printed '10^\-3 cm'\), from the monoexponential coherence decay; \+\- a fit standard deviation\. meissner\_2019/table1\_self\_870K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_self_870K", "material": "N2", "file": "N2/meissner_2019__table1_self_870K.csv", "table": "tbl_a526fa9af339", "quantity": "raman_linewidth", "unit": "cm-1", "scale": 0.001, "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "1 sigma" }, "parameters": { "transition": "S(J''), J'' the lower level, per row", "width": "fwhm", "perturber": "self", "temperature_k": 870, "pressure": "ambient, not stated numerically" } } Table 1 \(p\. 5\), 870 K\: FWHM of the S\(J''\) lines of pure N2 at ambient pressure, 1e\-3 cm\-1 \(printed '10^\-3 cm'\), from the monoexponential coherence decay; \+\- a fit standard deviation\. meissner\_2019/table1\_self\_1000K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_self_1000K", "material": "N2", "file": "N2/meissner_2019__table1_self_1000K.csv", "table": "tbl_a526fa9af339", "quantity": "raman_linewidth", "unit": "cm-1", "scale": 0.001, "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "1 sigma" }, "parameters": { "transition": "S(J''), J'' the lower level, per row", "width": "fwhm", "perturber": "self", "temperature_k": 1000, "pressure": "ambient, not stated numerically" } } Table 1 \(p\. 5\), 1000 K\: FWHM of the S\(J''\) lines of pure N2 at ambient pressure, 1e\-3 cm\-1 \(printed '10^\-3 cm'\), from the monoexponential coherence decay; \+\- a fit standard deviation\. meissner\_2019/table1\_self\_1200K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_self_1200K", "material": "N2", "file": "N2/meissner_2019__table1_self_1200K.csv", "table": "tbl_a526fa9af339", "quantity": "raman_linewidth", "unit": "cm-1", "scale": 0.001, "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "1 sigma" }, "parameters": { "transition": "S(J''), J'' the lower level, per row", "width": "fwhm", "perturber": "self", "temperature_k": 1200, "pressure": "ambient, not stated numerically" } } Table 1 \(p\. 5\), 1200 K\: FWHM of the S\(J''\) lines of pure N2 at ambient pressure, 1e\-3 cm\-1 \(printed '10^\-3 cm'\), from the monoexponential coherence decay; \+\- a fit standard deviation\. meissner\_2019/table1\_self\_1400K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_self_1400K", "material": "N2", "file": "N2/meissner_2019__table1_self_1400K.csv", "table": "tbl_a526fa9af339", "quantity": "raman_linewidth", "unit": "cm-1", "scale": 0.001, "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "1 sigma" }, "parameters": { "transition": "S(J''), J'' the lower level, per row", "width": "fwhm", "perturber": "self", "temperature_k": 1400, "pressure": "ambient, not stated numerically" } } Table 1 \(p\. 5\), 1400 K\: FWHM of the S\(J''\) lines of pure N2 at ambient pressure, 1e\-3 cm\-1 \(printed '10^\-3 cm'\), from the monoexponential coherence decay; \+\- a fit standard deviation\. meissner\_2019/table1\_self\_1650K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_self_1650K", "material": "N2", "file": "N2/meissner_2019__table1_self_1650K.csv", "table": "tbl_a526fa9af339", "quantity": "raman_linewidth", "unit": "cm-1", "scale": 0.001, "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "1 sigma" }, "parameters": { "transition": "S(J''), J'' the lower level, per row", "width": "fwhm", "perturber": "self", "temperature_k": 1650, "pressure": "ambient, not stated numerically" } } Table 1 \(p\. 5\), 1650 K\: FWHM of the S\(J''\) lines of pure N2 at ambient pressure, 1e\-3 cm\-1 \(printed '10^\-3 cm'\), from the monoexponential coherence decay; \+\- a fit standard deviation\. meissner\_2019/table1\_self\_1750K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_self_1750K", "material": "N2", "file": "N2/meissner_2019__table1_self_1750K.csv", "table": "tbl_a526fa9af339", "quantity": "raman_linewidth", "unit": "cm-1", "scale": 0.001, "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "1 sigma" }, "parameters": { "transition": "S(J''), J'' the lower level, per row", "width": "fwhm", "perturber": "self", "temperature_k": 1750, "pressure": "ambient, not stated numerically" } } Table 1 \(p\. 5\), 1750 K\: FWHM of the S\(J''\) lines of pure N2 at ambient pressure, 1e\-3 cm\-1 \(printed '10^\-3 cm'\), from the monoexponential coherence decay; \+\- a fit standard deviation\. meissner\_2019/table1\_self\_1900K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table1_self_1900K", "material": "N2", "file": "N2/meissner_2019__table1_self_1900K.csv", "table": "tbl_a526fa9af339", "quantity": "raman_linewidth", "unit": "cm-1", "scale": 0.001, "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "1 sigma" }, "parameters": { "transition": "S(J''), J'' the lower level, per row", "width": "fwhm", "perturber": "self", "temperature_k": 1900, "pressure": "ambient, not stated numerically" } } Table 1 \(p\. 5\), 1900 K\: FWHM of the S\(J''\) lines of pure N2 at ambient pressure, 1e\-3 cm\-1 \(printed '10^\-3 cm'\), from the monoexponential coherence decay; \+\- a fit standard deviation\. meissner\_2019/table2\_air\_295K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table2_air_295K", "material": "N2", "file": "N2/meissner_2019__table2_air_295K.csv", "table": "tbl_2fa66b541f5b", "quantity": "raman_linewidth", "unit": "cm-1", "scale": 0.001, "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "1 sigma" }, "parameters": { "transition": "S(J''), J'' the lower level, per row", "width": "fwhm", "perturber": "air", "temperature_k": 295, "pressure": "ambient, not stated numerically" } } Table 2 \(p\. 6\), 295 K\: FWHM of the N2 S\(J''\) lines in air at ambient pressure \('N2\-O2' in the paper\), 1e\-3 cm\-1 \(printed '10^\-3 cm'\); \+\- a fit standard deviation\. meissner\_2019/table2\_air\_500K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table2_air_500K", "material": "N2", "file": "N2/meissner_2019__table2_air_500K.csv", "table": "tbl_2fa66b541f5b", "quantity": "raman_linewidth", "unit": "cm-1", "scale": 0.001, "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "1 sigma" }, "parameters": { "transition": "S(J''), J'' the lower level, per row", "width": "fwhm", "perturber": "air", "temperature_k": 500, "pressure": "ambient, not stated numerically" } } Table 2 \(p\. 6\), 500 K\: FWHM of the N2 S\(J''\) lines in air at ambient pressure \('N2\-O2' in the paper\), 1e\-3 cm\-1 \(printed '10^\-3 cm'\); \+\- a fit standard deviation\. meissner\_2019/table2\_air\_870K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table2_air_870K", "material": "N2", "file": "N2/meissner_2019__table2_air_870K.csv", "table": "tbl_2fa66b541f5b", "quantity": "raman_linewidth", "unit": "cm-1", "scale": 0.001, "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "1 sigma" }, "parameters": { "transition": "S(J''), J'' the lower level, per row", "width": "fwhm", "perturber": "air", "temperature_k": 870, "pressure": "ambient, not stated numerically" } } Table 2 \(p\. 6\), 870 K\: FWHM of the N2 S\(J''\) lines in air at ambient pressure \('N2\-O2' in the paper\), 1e\-3 cm\-1 \(printed '10^\-3 cm'\); \+\- a fit standard deviation\. meissner\_2019/table2\_air\_1400K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table2_air_1400K", "material": "N2", "file": "N2/meissner_2019__table2_air_1400K.csv", "table": "tbl_2fa66b541f5b", "quantity": "raman_linewidth", "unit": "cm-1", "scale": 0.001, "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "1 sigma" }, "parameters": { "transition": "S(J''), J'' the lower level, per row", "width": "fwhm", "perturber": "air", "temperature_k": 1400, "pressure": "ambient, not stated numerically" } } Table 2 \(p\. 6\), 1400 K\: FWHM of the N2 S\(J''\) lines in air at ambient pressure \('N2\-O2' in the paper\), 1e\-3 cm\-1 \(printed '10^\-3 cm'\); \+\- a fit standard deviation\. meissner\_2019/table2\_air\_1650K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table2_air_1650K", "material": "N2", "file": "N2/meissner_2019__table2_air_1650K.csv", "table": "tbl_2fa66b541f5b", "quantity": "raman_linewidth", "unit": "cm-1", "scale": 0.001, "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "1 sigma" }, "parameters": { "transition": "S(J''), J'' the lower level, per row", "width": "fwhm", "perturber": "air", "temperature_k": 1650, "pressure": "ambient, not stated numerically" } } Table 2 \(p\. 6\), 1650 K\: FWHM of the N2 S\(J''\) lines in air at ambient pressure \('N2\-O2' in the paper\), 1e\-3 cm\-1 \(printed '10^\-3 cm'\); \+\- a fit standard deviation\. meissner\_2019/table2\_air\_1900K ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text { "id": "table2_air_1900K", "material": "N2", "file": "N2/meissner_2019__table2_air_1900K.csv", "table": "tbl_2fa66b541f5b", "quantity": "raman_linewidth", "unit": "cm-1", "scale": 0.001, "abscissa": "label", "use": "primary", "uncertainty": { "column": true, "level": "1 sigma" }, "parameters": { "transition": "S(J''), J'' the lower level, per row", "width": "fwhm", "perturber": "air", "temperature_k": 1900, "pressure": "ambient, not stated numerically" } } Table 2 \(p\. 6\), 1900 K\: FWHM of the N2 S\(J''\) lines in air at ambient pressure \('N2\-O2' in the paper\), 1e\-3 cm\-1 \(printed '10^\-3 cm'\); \+\- a fit standard deviation\. 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 :doc:`review register ` for the checks and decisions.