Hole-assisted energy deposition in dielectrics and clusters in the multiphoton regime 1

We propose a novel mechanism of energy absorption in dielectric materials with ultrashort infrared laser pulses of intensities below the damage threshold. Analytical theory, generalized to hole-assisted processes in arbitrarily polarized laser fields, is validated using one-dimensional numerical sim...

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Published inJournal of modern optics Vol. 52; no. 7; pp. 1019 - 1030
Main Authors Gaier, L N, Lein, M, Stockman, M I, Yudin, G L, Corkum, P B, Ivanov, M Yu, Knight, P L
Format Journal Article
LanguageEnglish
Published 01.05.2005
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Summary:We propose a novel mechanism of energy absorption in dielectric materials with ultrashort infrared laser pulses of intensities below the damage threshold. Analytical theory, generalized to hole-assisted processes in arbitrarily polarized laser fields, is validated using one-dimensional numerical simulations of the time-dependent Schrodinger equation. Large enhancements in the multiphoton transition rates are found both numerically and analytically. The one-dimensional calculations are extended to two dimensions via a forest fire percolation model, in which nanoplasma-like structures have been identified.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
content type line 23
ObjectType-Feature-1
ISSN:0950-0340
1362-3044
DOI:10.1080/09500340500067174