NDLI: Floquet Hamiltonian approach for dynamics in short and intense laser pulses

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Floquet Hamiltonian approach for dynamics in short and intense laser pulses

Content Provider	Scilit
Author	Medišauskas, Lukas Saalmann, Ulf Rost, Jan M. Michael
Copyright Year	2018
Description	Journal: Journal of Physics B: Atomic, Molecular and Optical Physics We present a time-dependent Floquet method for short pulses and arbitrary laser frequencies that uses the cycle-averaged Kramers-Henneberger basis. By means of a particular plane-wave expansion we arrive at a time-dependent Schrödinger equation governed by a Floquet Hamiltonian, which consists of convolutions of momentum and Fourier components. A dedicated numerical treatment of these convolutions, based on Toeplitz matrices and fast Fourier transformations, allows for an efficient time-propagation of large Floquet expansions. Three illustrative cases of ionization with different photon energies are analyzed, where the envelope of a short and intense pulse is crucial to the underlying dynamics.
Related Links	http://iopscience.iop.org/article/10.1088/1361-6455/aaef42/pdf
ISSN	09534075
e-ISSN	13616455
DOI	10.1088/1361-6455/aaef42
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Issue Number	1
Volume Number	52
Language	English
Publisher	IOP Publishing
Publisher Date	2018-11-08
Access Restriction	Open
Subject Keyword	Journal: Journal of Physics B: Atomic, Molecular and Optical Physics Mathematical Physics Floquet Hamiltonian
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics

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