Ac-Stark broadening of three-photon resonances in four-photon ionization of iodine atoms with broadband laser radiation
- 1 February 1987
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America B
- Vol. 4 (2) , 129-132
- https://doi.org/10.1364/josab.4.000129
Abstract
Ac-Stark-broadened three-photon resonances in four-photon ionization of iodine atoms are investigated experimentally and analyzed theoretically, including the effect of laser intensity fluctuations and spatiotemporal distribution of average intensity. It is shown that the resonance maximum cannot be used in estimating the hyperpolarizabilities of atomic levels. By applying the properly designed procedure, the difference in hyperpolarizabilities of 5p(2P1/2) and nd(…)73/2 levels is found to be α12 = 20 ± 10 Å3.Keywords
This publication has 9 references indexed in Scilit:
- Alternating-current Stark-effect line shapes in multiphoton ionization spectraJournal of the Optical Society of America B, 1985
- Laser Intensity for Maximum Yield in Multiphoton IonizationPhysical Review Letters, 1985
- Real-time multiphoton ionization detection of iodine atoms produced by infrared multiphoton dissociation of perfluoroalkyl iodidesChemical Physics Letters, 1983
- Multiphoton ionization of the trifluoromethyl radicalThe Journal of Physical Chemistry, 1982
- Two-photon excitation of thelevel in H and D atomsPhysical Review A, 1981
- The resonant ionisation of atoms under multifrequency laser radiationJournal of Physics B: Atomic and Molecular Physics, 1980
- Many-photon excitation of an atom by multimode radiationSoviet Journal of Quantum Electronics, 1979
- New Photon-Correlation Effects in Near-Resonant Multiphoton IonizationPhysical Review Letters, 1978
- Nonresonance perturbation of an atomic spectrum in a strong light fieldSoviet Physics Uspekhi, 1976