Abstract
An adiabatic-switch method for calculating harmonic generation under intense laser radiation is presented. The adiabatic switch is first applied to nonbound (i.e., ionizing or dissociative) time-periodic Hamiltonians when the energy spectrum is degenerate. Our derivation is based on the use of Floquet theory combined with complex scaling and of a generalized definition of the inner product for non-Hermitian operators. A model potential representing a Xe atom in the presence of a laser field is studied as an example to illustrate the numerical advantages of the present method and its stability.
Original language | English |
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Pages (from-to) | 2437-2442 |
Number of pages | 6 |
Journal | Physical Review A |
Volume | 48 |
Issue number | 3 |
DOIs | |
State | Published - 1993 |