ferrell_1987#
W. R. Ferrell, M. G. Payne and W. R. Garrett, Phys. Rev. A 35, 5020 (1987)
Source record · Catalogue · Review register
Source kind: measurement
Recorded technique: Multiphoton ionization detection of phase-matched third-harmonic generation in Xe-Ar and Xe-Kr mixtures near the Xe 6s, 6s’, 5d, 7s and Kr 5s’ three-photon resonances (unfocused and mildly focused dye-laser beams, proportional counter): the width and detuning of the phase-matching profile give the resonance oscillator strength, the absorption coefficient and n(3 omega) of the buffer gas, using its known n(omega) (Eq. (11)).
Materials in structured entries: Ar, Kr, Xe
Dataset quantities: refractivity_per_density
Contents: 8 datasets; 0 formulas.
Curation notes#
All values in the text (no table of refractivities). The buffer-gas refractivities are given as (n - 1)/N ‘at STP’, printed with the unit ‘cm^-3’; the quantity has the unit cm^3 (n - 1 = 5.47e-4 for argon at 119 nm divided by 2.69e19 cm^-3 is 2.04e-23 cm^3; Fig. 10 plots 10^25 [n(omega) - 1]/N), so the values are stored as refractivity per density in cm^3. The paper states no uncertainty for them; the argon points ‘vary by only 2 % from the calculated indexes’ of its Sellmeier analysis (p. 9), the krypton points by 11 % and 2.7 % (p. 10), attributed to the approximation of the xenon index by its nearby resonance term at large detuning. Wavelengths are vacuum wavelengths (the 3 omega wavelengths of the experiment).
The oscillator strengths of Table I (Xe 6s 0.260 +- 0.05, 6s’ 0.19 +- 0.04, 5d 0.370 +- 0.07, 7s 0.088 +- 0.01, Kr 5s’ 0.180 +- 0.027, with others’ values) are not extracted: the paper prints no transition wavelengths, and the package keys an oscillator strength to its wavelength. The absorption coefficients (e.g. 2 beta = 1.0e-4 P_Xe P_Ar at 146.4 nm, pressures in Torr) are not a quantity of the package.
The text quotes other authors’ values (pp. 9-10): Chashchina et al. for argon (140, 130, 120, 118.2 and 121.57 nm) and krypton (228.8 nm), Chashchina and Shreider for xenon (148.3 nm and a point ‘on the blue side of the 6s’), Mahon et al.’s calculation and Chopra and Heddle’s Rayleigh value at Lyman alpha for argon (1.92e-23, 1.90e-23; recorded in mahon_1979, which quotes the same numbers), Bideau-Mehu et al. and Smith et al. at 228.8 nm (Kr) and Bideau-Mehu et al. at 148.3 nm (Xe; in bideau_mehu_1981). Misprints in the text: ‘30 nm’ for Chashchina’s 130 nm value (erratum); Bideau-Mehu’s xenon value at 148.3 nm printed as 1.895e-23 is 1.895e-22 (their 5091e-6 divided by 2.687e19; the neighbouring 1.823e-22 and 1.829e-22 are printed correctly); the point ‘on the blue side’ is not given a wavelength, but Bideau-Mehu’s value quoted for it, 2.433e-23, is their 140.4 nm value (653.8e-6 / 2.687e19).
At 121.6 nm in krypton (blue of the 123.58 nm resonance, n - 1 negative) the text quotes Mahon et al.’s -5.58e-24 (phase matching in pure Kr), Gladushchak et al.’s -3.35e-24, Chopra and Heddle’s +3.28e-23 (Rayleigh scattering, which gives (n - 1)^2 only), Mahon’s calculation -7.75e-24 and ‘the present calculation’ printed as -4.632e-23 (probably -4.632e-24 by comparison, unverified). Negative refractivities cannot be datasets; they are recorded here only.
Third-order data (checked 2026-09-26): none. The paper uses phase-matched, near-resonant third-harmonic generation only as a probe of oscillator strengths, buffer-gas refractivities and absorption; it prints no third-order susceptibility or hyperpolarizability (Eqs. (1)-(8) are written in terms of the resonant phase mismatch and the Rabi frequency, and no chi(3) value appears in the text, the table or the figure captions). No third-order dataset is added.
Recorded bibliographic identity status: VALIDATED_WITH_WARNINGS. This concerns identification of the source; it does not establish the scientific correctness of its contents.
Datasets#
ferrell_1987/experiment_Ar#
{
"id": "experiment_Ar",
"material": "Ar",
"table": "text",
"quantity": "refractivity_per_density",
"unit": "cm3",
"abscissa_unit": "nm",
"wavelength_medium": "vacuum",
"state": "1atm_0C",
"density": "unknown",
"use": "primary"
}
3 inline points in the source record.
p. 9: ‘the three experimental points in argon at STP are (n - 1)/N = 2.037 x 10^-23 cm^-3 (119.120 nm), ... 1.637 x 10^-23 (129.309 nm), and ... 1.427 x 10^-23 (146.542 nm)’ (unit misprinted: cm^3). Argon was the buffer gas at 3 omega near the Xe 5d, 6s’ and 6s resonances. No uncertainty stated; within 2 % of the paper’s Sellmeier curve.
ferrell_1987/experiment_Kr#
{
"id": "experiment_Kr",
"material": "Kr",
"table": "text",
"quantity": "refractivity_per_density",
"unit": "cm3",
"abscissa_unit": "nm",
"wavelength_medium": "vacuum",
"state": "1atm_0C",
"density": "unknown",
"use": "check"
}
2 inline points in the source record.
p. 9-10: ‘the experimentally determined indexes in krypton are (n - 1)/N = 2.607 x 10^-23 cm^-3 at 146.413 nm and ... 2.654 x 10^-23 at 146.550 nm’, 11 % and 2.7 % above the paper’s calculation, which the authors attribute to their resonant approximation at large detuning. The two disagree in direction with normal dispersion (the longer wavelength has the larger value, by 1.8 %); the 146.413 nm value agrees with Bideau-Mehu et al.’s krypton data interpolated between 140.4 and 152.5 nm (about 700e-6 at STP). Kept as a check.
ferrell_1987/sellmeier_Ar#
{
"id": "sellmeier_Ar",
"material": "Ar",
"table": "text",
"quantity": "refractivity_per_density",
"unit": "cm3",
"abscissa_unit": "nm",
"wavelength_medium": "vacuum",
"state": "1atm_0C",
"density": "unknown",
"use": "check"
}
1 inline points in the source record.
p. 9: ‘the present value of 1.88 x 10^-23’ at Lyman alpha (121.57 nm), from the paper’s Sellmeier representation incorporating its data.
ferrell_1987/sellmeier_Kr#
{
"id": "sellmeier_Kr",
"material": "Kr",
"table": "text",
"quantity": "refractivity_per_density",
"unit": "cm3",
"abscissa_unit": "nm",
"wavelength_medium": "vacuum",
"state": "1atm_0C",
"density": "unknown",
"use": "check"
}
1 inline points in the source record.
p. 10: ‘At 228.8 nm, for example, our analysis gives 1.814 x 10^-23’, within 1 % of Bideau-Mehu et al., Smith et al. (1.820) and Chashchina et al. (1.828).
ferrell_1987/sellmeier_Xe#
{
"id": "sellmeier_Xe",
"material": "Xe",
"table": "text",
"quantity": "refractivity_per_density",
"unit": "cm3",
"abscissa_unit": "nm",
"wavelength_medium": "vacuum",
"state": "1atm_0C",
"density": "unknown",
"use": "check"
}
2 inline points in the source record.
p. 10: ‘The 1.829 x 10^-22 cm^-3 as calculated by present analysis’ at 148.3 nm, and ‘2.483 x 10^-23 cm^-3 from present results’ for the point on the blue side of the 6s resonance, whose wavelength is not printed (140.4 nm, identified by the Bideau-Mehu value quoted with it; see the source notes).
ferrell_1987/chashchina_1968_Ar#
{
"id": "chashchina_1968_Ar",
"material": "Ar",
"table": "text",
"quantity": "refractivity_per_density",
"unit": "cm3",
"abscissa_unit": "nm",
"wavelength_medium": "vacuum",
"state": "1atm_0C",
"density": "unknown",
"use": "reproduced",
"reproduced_from": [
"G. I. Chashchina, V. I. Gladushchak and E. Ya. Shreider, Opt. Spectrosc. 24, 542 (1968)"
]
}
5 inline points in the source record.
pp. 9-10: Chashchina et al.’s argon values, which ‘are given via a three-term Sellmeier formula with no raw data shown’ (stated error 0.2-0.5 %): at 140 nm 1.487, ‘at 30 nm’ (130 nm, erratum) 1.635, at 120 nm 1.935, at 118.2 nm 2.043, and at Lyman alpha (121.57 nm) 1.87 (x 10^-23 cm^3). The original is not in the library.
ferrell_1987/chashchina_Kr#
{
"id": "chashchina_Kr",
"material": "Kr",
"table": "text",
"quantity": "refractivity_per_density",
"unit": "cm3",
"abscissa_unit": "nm",
"wavelength_medium": "vacuum",
"state": "1atm_0C",
"density": "unknown",
"use": "reproduced",
"reproduced_from": [
"G. I. Chashchina and E. Ya. Shreider, Opt. Spectrosc. 27, 79 (1969)"
]
}
1 inline points in the source record.
p. 10: krypton at 228.8 nm, ‘1.828 x 10^-23 cm^-3 by Chashchina et al.’ The paper cites its Ref. 3 (the argon paper, Opt. Spectrosc. 24, 542 (1968)); the krypton values are Chashchina and Shreider’s (its Ref. 2), cited here. The original is not in the library.
ferrell_1987/chashchina_shreider_1969_Xe#
{
"id": "chashchina_shreider_1969_Xe",
"material": "Xe",
"table": "text",
"quantity": "refractivity_per_density",
"unit": "cm3",
"abscissa_unit": "nm",
"wavelength_medium": "vacuum",
"state": "1atm_0C",
"density": "unknown",
"use": "excluded",
"reproduced_from": [
"G. I. Chashchina and E. Ya. Shreider, Opt. Spectrosc. 27, 79 (1969)"
]
}
2 inline points in the source record.
p. 10: Chashchina and Shreider’s xenon values at 148.3 nm (1.823 x 10^-22) and on the blue side of the 6s resonance (2.40 x 10^-23; 140.4 nm by the Bideau-Mehu value quoted with it). Both lie below 155 nm, where Chashchina and Shreider’s xenon measurements stop (Bideau-Mehu et al. 1981, p. 395; Leonard 1974, p. 4): extrapolations of their formula, excluded.
Formulas#
No formulas are recorded.
Corrections#
[
{
"dataset": "chashchina_1968_Ar",
"row": "30",
"column": "x",
"printed": "30",
"corrected": "130",
"reason": "The text lists Chashchina's argon values at 140, '30', 120 and 118.2 nm; 30 nm is far outside the 230-110 nm range of those measurements (stated in the same paragraph), and 1.635e-23 matches the paper's own point at 129.309 nm (1.637e-23, 'which is 0.2 % lower than present results').",
"evidence": "Page image p. 9 (rendered 2026-09-24) prints '30 nm'; Fig. 10 shows the argon curve near 1.64e-23 at 130 nm."
}
]
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.