Doppler-free radiofrequency optogalvanic spectroscopy

Lyons, Donald R.; Schawlow, A. L.; Yan, G. Y.

doi:10.1016/0030-4018(81)90302-3

Cited by 50 publications

(5 citation statements)

References 8 publications

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“…James E. Lawler extended the methods of optogalvanic detection of laser absorption (Careen et al , 1956) to detect Doppler-free intermodulation and two-photon lines (Lawler et al , 1979). In turn, this method has been extended by Donald R. Lyons and Guang-Yao Yan (Lyons, Schawlow, and Yan, 1981) to use electrodeless radio-frequency detection of Dopplerfree resonances. Even less, is it possible to begin to describe the many exciting discoveries and developments from other laboratories.…”

Section: Other Methodsmentioning

confidence: 99%

Spectroscopy in a new light

Schawlow

1982

Rev. Mod. Phys.

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Section: Other Methodsmentioning

confidence: 99%

Spectroscopy in a new light

Schawlow

1982

Rev. Mod. Phys.

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“…Normally, OGS spectra are subject to Doppler broadening; this aspect does not cause problems for many ARS because of their large natural widths. For high-resolution spectroscopy of narrow lines, different methods such as Doppler-free OGS have been developed [166][167][168][169].…”

Section: Optogalvanic Spectroscopymentioning

confidence: 99%

Photoionization dynamics of excited Ne, Ar, Kr and Xe atoms near threshold

Sukhorukov¹,

Petrov²,

Schäfer³

et al. 2012

J. Phys. B: At. Mol. Opt. Phys.

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A review of experimental and theoretical studies of the threshold photoionization of the heavier rare-gas atoms is presented, with particular emphasis on the autoionization resonances in the spectral region between the lowest two ionization thresholds (mp 5 2 P 3/2 and mp 5 2 P 1/2 , with m = 2, 3, 4, and 5 for Ne, Ar, Kr, and Xe, respectively). Observed trends in the positions, widths, and shapes of the autoionization resonances in dependence of the atomic number, the principal quantum number n, the orbital angular momentum quantum number and further quantum numbers such as K, J and F specifying the fine-and hyperfine-structure levels, are summarized and discussed in the light of ab initio and multichannel quantum defect theory calculations. The dependence of the photoionization spectra on the initially prepared neutral state, e.g. the 1 S 0 ground state, the mp 5 (m + 1)s 3 P 2 and mp 5 (m + 1)s 3 P 0 metastable levels and other states prepared from the ground or metastable levels in single-and multiphoton processes, are also discussed, including results on the photoionization of aligned and oriented samples and on photoelectron angular distributions. The effects of various approximations in the theoretical treatment of photoionization in these systems are analysed. The very large and at first sight discouraging diversity of observed phenomena and the numerous anomalies in spectral structures associated with the threshold ionization of the rare-gas atoms can be described in terms of a limited set of interactions and dynamical processes. Examples are provided illustrating characteristic aspects of the photoionization, and sets of recommended parameters describing the energy-level structure and photoionization dynamics of the rare-gas atoms are presented which were extracted in a critical analysis of the very large body of experimental and theoretical data available on these systems in the literature.

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“…In addition, and special for discharges, optogalvanic spectroscopy [3,4] can be used. In its intermodulated version employing current detection [SI or rf-impedance detection [6,7], Doppler-free spectra can be obtained. The latest addition to these techniques, largely developed by the Stanford group, is the polarization intermodulated excitation (POLINEX) spectroscopy [ 8 ] , which is particularly valuable in connection with discharges because of its immunity to velocitychanging collisions, which otherwise tend to smear out an initially marked velocity group.…”

Section: Introductionmentioning

confidence: 99%

Doppler-Free Laser Spectroscopy Measurements on a Ne Discharge for Determination of²²Ne-²⁰Ne Isotope Shifts

et al. 1983

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not been measured by laser spectroscopy. For the studied lines data from a precision optical spectroscopy investigation by Odintsov [21] are available for comparison and a good We have used Doppler-free polarization spectroscopy, intermodulated fluorescence and intermodulated optogalvanic spectroscopy for measuring isotope shifts m 6 Ne lines connecting the 2ps3s and 2p53p agreement is Obtainedconfigurations. The measurements were performed on two different In the next section we describe the measurement arrangehollow cathodes. For the 5852, 5882, 5945, 5976, 6143 and 6 1 6 4 A ments used in the experiments and in Section 3 the measurelines the *zNe-20Ne isotope shift was found to be 2300(15), 1740(2), ments and results are presented. In a final discussion, different are in fair agreement with previous optical spectroscopy data.

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Doppler-free radiofrequency optogalvanic spectroscopy

Cited by 50 publications

References 8 publications

Spectroscopy in a new light

Spectroscopy in a new light

Photoionization dynamics of excited Ne, Ar, Kr and Xe atoms near threshold

Doppler-Free Laser Spectroscopy Measurements on a Ne Discharge for Determination of²²Ne-²⁰Ne Isotope Shifts

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Doppler-free radiofrequency optogalvanic spectroscopy

Cited by 50 publications

References 8 publications

Spectroscopy in a new light

Spectroscopy in a new light

Photoionization dynamics of excited Ne, Ar, Kr and Xe atoms near threshold

Doppler-Free Laser Spectroscopy Measurements on a Ne Discharge for Determination of22Ne-20Ne Isotope Shifts

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Doppler-Free Laser Spectroscopy Measurements on a Ne Discharge for Determination of²²Ne-²⁰Ne Isotope Shifts