Energy analysis of time-dependent wave functions: Application to above-threshold ionization
- 1 November 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 42 (9) , 5794-5797
- https://doi.org/10.1103/physreva.42.5794
Abstract
We present an alternative method for calculating energy-resolved properties from time-dependent wave functions. As a first application of the method, we calculate above-threshold ionization (ATI) spectra and energy-resolved angular distributions from hydrogen ionized by an intense, short-pulse laser at 532 nm. Below saturation the ATI peaks decrease according to an (intensity-dependent) power law. At the onset of saturation a plateau forms in the spectrum, reminiscent of plateaus seen experimentally in harmonic spectra observed during multiphoton ionization.Keywords
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