Four-photon excitation of autoionizing states of Ar, Kr, and Xe between the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow /><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>2</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="italic">P</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn><mm

Koeckhoven, S. M.; Buma, Wybren Jan; Lange, C.A. de

doi:10.1103/physreva.51.1097

Cited by 45 publications

(40 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Relative intensities of these two components reverse as the polarization of the laser light varies from parallel to perpendicular to the polarization of SR. Because two-photon excitation with perpendicular polarization favors production of series with ∆J = 2, and excitation with parallel polarization favors series with ∆J = 0, it is likely that the high-energy component and the low-energy component belong to the 3p 5 np' [l/2] 0 and 3p 5 np' [3/2] 2 series, respectively. Koeckhoven et al [6] observed corresponding series in Kr and Xe with four-photon excitation, but were unable to resolve them in Ar.…”

Section: T W O -P H Oton E N Erg Y /Evmentioning

confidence: 96%

Synchrotron-laser two-color experiments: Two-photon double-resonant excitation of Ar to autoionization states between the 2P3/2 and 2P1/2 ionic thresholds

Lee¹

2004

AIP Conference Proceedings

View full text Add to dashboard Cite

Section: T W O -P H Oton E N Erg Y /Evmentioning

confidence: 96%

Synchrotron-laser two-color experiments: Two-photon double-resonant excitation of Ar to autoionization states between the 2P3/2 and 2P1/2 ionic thresholds

Lee¹

2004

AIP Conference Proceedings

View full text Add to dashboard Cite

“…The electron spectra were calibrated against known autoionization peaks and energy levels for Xe atoms [56][57][58] with an absolute energy accuracy of about 5 meV at low energies. Correspondingly, a systematic error of ±2.5 meV has been included in all error estimates referring to determined absolute electron energies.…”

Section: -2mentioning

confidence: 99%

Strong-field photoionization ofO2at intermediate light intensity

et al. 2010

View full text Add to dashboard Cite

We investigated by electron spectroscopy the strong-field multiphoton ionization of O 2 molecules with ultrashort laser pulses in the intensity range between the multiphoton and tunneling regimes. The ionization proceeds by at least three different mechanisms, in addition to the eight-and nine-photon nonresonant pathways. Transient multiphoton resonances with vibrational Rydberg levels give rise to direct Freeman-type peaks with sublaser linewidth and spin-orbit splitting. Some resonance levels actually become populated and yield extremely narrow lines because of postpulse vibrational autoionization. When the lowest photon order resonance channel for the Rydberg states is closed, a third contribution becomes dominant with a main peak at 0.4 eV that shares its main properties with the recently discovered universal low-energy structure in the electron spectra of atoms and molecules [C. I. Blaga et al., Nat. Phys. 5, 335 (2009); W. Quan et al., Phys. Rev. Lett. 103, 093001 (2009)]. The variation of the Freeman resonance spectrum with the laser peak intensity is well correlated with the vibronic Franck-Condon factors for the overlap of the intermediate Rydberg state with the O 2 ground state. Accordingly, the Freeman peaks could be unambiguously assigned to individual vibronic multiphoton resonances, and the disappearance of the Freeman resonances at a certain laser intensity could be explained. The population of the autoionizing Rydberg states could be assigned similarly to such vibronic resonances.

show abstract

“…Dunning and Stebbing [17] obtained Kr atoms in the two metastable states produced by electron impact, then observed for the first time the excitation spectrum from the metastable states to some even-parity 4p 5 np' [1/2] 1 and 4p 5 nf' [5/2] 3 autoionizing resonances. Subsequently, there were some papers reported partly even-parity autoionizing resonances excited by VUV laser multiphoton or synchronization radiation [4,[18][19][20] .…”

Section: Introductionmentioning

confidence: 99%

Resonance-enhanced photon excitation spectroscopy of the even-parity autoionizing Rydberg states of Kr

Wang

Jiang

et al. 2009

Sci. China Ser. B-Chem.

View full text Add to dashboard Cite

Kr atoms were produced in their metastable states 4p 5 5s [3/2] 2 and 4p 5 5s′ [1/2] 0 in a pulsed DC discharge in a beam, and subsequently excited to the even-parity autoionizing Rydberg states 4p 5 np' [3/2] 1,2 , [1/2] 1 and 4p 5 nf' [5/2] 3 using single photon excitation. The excitation spectra of the even-parity autoionizing resonance series from the metastable Kr were obtained by recording the autoionized Kr + ions with time-of-flight ion detection in the photon energy range of 29000-40000 cm −1 . A wealth of autoionizing resonances were newly observed, from which more precise and more systematic spectroscopic data of the level energy and quantum defects were derived.

show abstract

Four-photon excitation of autoionizing states of Ar, Kr, and Xe between the2P3

Cited by 45 publications

References 34 publications

Synchrotron-laser two-color experiments: Two-photon double-resonant excitation of Ar to autoionization states between the 2P3/2 and 2P1/2 ionic thresholds

Synchrotron-laser two-color experiments: Two-photon double-resonant excitation of Ar to autoionization states between the 2P3/2 and 2P1/2 ionic thresholds

Strong-field photoionization ofO2at intermediate light intensity

Resonance-enhanced photon excitation spectroscopy of the even-parity autoionizing Rydberg states of Kr

Contact Info

Product

Resources

About