Absence of resonances in femtosecond photoionisation spectra
- 14 February 1989
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 22 (3) , L57-L63
- https://doi.org/10.1088/0953-4075/22/3/002
Abstract
Xenon was ionised by 100 fs UV pulses. The electron spectra showed a decreasing energy of the photoelectrons with increasing light intensity. No resonances were observed in the electron spectrum. The absence of resonances is understood in terms of the ratio of the pulse duration and the characteristic time (2 pi n3 in au) of the intermediate state. From the observed spectra it appears that the four-photon ionisation of xenon at 309 nm is not saturated at an intensity of 1.5*1013 W cm-2.Keywords
This publication has 17 references indexed in Scilit:
- High laser intensity and pulse duration effects on the energy distribution of electrons produced in multiphoton ionisation of He at 1064 nmJournal of Physics B: Atomic, Molecular and Optical Physics, 1988
- Direct evidence of ponderomotive effects via laser pulse duration in above-threshold ionizationPhysical Review A, 1987
- Above-threshold ionization with subpicosecond laser pulsesPhysical Review Letters, 1987
- Subpicosecond ultraviolet multiphoton electron spectroscopy of rare gasesJournal of the Optical Society of America B, 1987
- Generation and detection of Rydberg wave packets by short laser pulsesPhysical Review A, 1986
- Electron spectra from multiphoton ionization of xenon at 1064, 532, and 355 nmPhysical Review A, 1983
- Magnetic field paralleliser for 2π electron-spectrometer and electron-image magnifierJournal of Physics E: Scientific Instruments, 1983
- Free-Free Transitions Following Six-Photon Ionization of Xenon AtomsPhysical Review Letters, 1979
- Second-harmonic generation by picosecond optical pulsesIEEE Journal of Quantum Electronics, 1969
- Rayleigh Scattering and the Electromagnetic Susceptibility of AtomsPhysical Review B, 1968