High-resolution measurement and quantum-defect analysis for the Ne nd' J= 1, 2 and 3 autoionizing resonances

Klar, D.; Ueda, Kiyoshi; Ganz, J.; Harth, Kirsten; Bußert, W.; Baier, S.; Weber, J. Mathias; Ruf, M.-W.; Hotop, H.

doi:10.1088/0953-4075/27/20/009

Cited by 22 publications

(44 citation statements)

References 21 publications

(8 reference statements)

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“…[4,5,23,24], we have started a study of their ionization dynamics in single photon excitation. For metastable Xe * (J = 0) atoms we have determined absolute cross sections and electron angular distributions for one photon ionization in the wavelength range 462-430 nm (ε = 0-200 meV), covering the prominent 7p autoionization resonances [13].…”

Section: Introductionmentioning

confidence: 99%

Experimental and theoretical cross sections for photoionization of metastable Xe*. (6s 3 P 2, 3 P 0) atoms near threshold

Kau

Petrov

Sukhorukov

et al. 1997

Z Phys D - Atoms, Molecules and Clusters

102

119

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Using high resolution laser photoelectron spectrometry we have determined absolute cross sections σ J0J1 and the electron angular distribution parameter for one photon ionization of metastable Xe * (6s 3 P J0 , J 0 = 2, 0) atoms to the resolved Xe + ( 2 P J1 , J 1 = 3/2, 1/2) ion states at several wavelengths near threshold. For comparison with the present and future experimental data we have calculated partial cross sections and β-parameters for photoionization of Xe * (6s 3 P J0 , J 0 = 2, 0) and of the analogous alkali atom Cs(6s) over the photoelectron energy range (0-5) eV. We have used both a term-dependent Pauli-Fock (PF) approach and a configuration interaction method involving Pauli-Fock atomic orbitals (CIPF). Through the PF method we include relativistic effects on the atomic orbitals; the CIPF method was designed to take into account the important electron correlation effects which are found to be essential for obtaining good agreement between the theoretical and experimental results.

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Section: Introductionmentioning

confidence: 99%

Experimental and theoretical cross sections for photoionization of metastable Xe*. (6s 3 P 2, 3 P 0) atoms near threshold

Kau

Petrov

Sukhorukov

et al. 1997

Z Phys D - Atoms, Molecules and Clusters

102

119

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“…Starting in the early 1980s, resonant two-photon excitation experiments of the metastable rare-gas atoms yielded spectra of the odd-parity ARS of Ne, Ar, Kr, and Xe for J = 0 − 4 [35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50]. With singlemode lasers, the very sharp ns and nd resonances in neon could be resolved for the first time [37,38,42]. Nonresonant three-and four-photon excitation from the ground state were also used to access n [K ] J ARS of odd ( = 0, 2, 4; J = 0, 2, 4) [51][52][53] and even parity ( = 1, 3; J = 1, 3) [54,55].…”

Section: Introductionmentioning

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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“…The experimental set-up for the atomic beam spectroscopy (ABS) experiment and the two-step laser excitation scheme for recording autoionizing resonances of the heavy rare gas atoms Ne, Ar, Kr and Xe have been discussed before in detail [8,21,24]. Here, we give a brief description relevant for the work on xenon.…”

Section: Atomic Beam Experimentsmentioning

confidence: 99%

“…In previous work, we analysed bound and autoionizing Rydberg series of Ne, Ar and Kr atoms by MQDT [21][22][23][24] as well as by ab initio calculations [8][9][10]. In the present paper, we apply many-body calculational techniques developed in [10,63,64] to compute the quantum defects and the reduced widths of odd 5p 5 1/2 nl [K ] J (l = 0, 2, 4) resonances in xenon.…”

Section: Theoretical Investigationsmentioning

confidence: 99%

“…The resonance shapes were found to be in good agreement with the experimental data, but the predicted resonance widths were systematically larger (by factors between 1.5 and 2) than recommended experimental results (see, e.g., [8] for details regarding the ns J = 1 series). As an alternative to ab initio type calculations, one may use existing spectroscopic information in order to describe the spectra in the autoionization region with the help of MQDT [15][16][17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

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Dependence of Photodarkening on Alloy Composition of CdS_xSe_1-x Nanocrystals in Glasses

Miyoshi¹,

Nitta²,

Ohkuni³

et al. 1998

Jpn. J. Appl. Phys.

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High-resolution measurement and quantum-defect analysis for the Ne nd' J= 1, 2 and 3 autoionizing resonances

Cited by 22 publications

References 21 publications

Experimental and theoretical cross sections for photoionization of metastable Xe*. (6s 3 P 2, 3 P 0) atoms near threshold

Experimental and theoretical cross sections for photoionization of metastable Xe*. (6s 3 P 2, 3 P 0) atoms near threshold

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

Dependence of Photodarkening on Alloy Composition of CdS_xSe_1-x Nanocrystals in Glasses

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High-resolution measurement and quantum-defect analysis for the Ne nd' J= 1, 2 and 3 autoionizing resonances

Cited by 22 publications

References 21 publications

Experimental and theoretical cross sections for photoionization of metastable Xe*. (6s 3 P 2, 3 P 0) atoms near threshold

Experimental and theoretical cross sections for photoionization of metastable Xe*. (6s 3 P 2, 3 P 0) atoms near threshold

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

Dependence of Photodarkening on Alloy Composition of CdSxSe1-x Nanocrystals in Glasses

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Dependence of Photodarkening on Alloy Composition of CdS_xSe_1-x Nanocrystals in Glasses