Efficient scattering of intense picosecond pulses by optical inhomogeneities in a self-focusing channel in compressed hydrogen

Authors
Kuznetsov, DS Morozov, VB Olenin, AN Tunkin, VG
Citation
Ds. Kuznetsov et al., Efficient scattering of intense picosecond pulses by optical inhomogeneities in a self-focusing channel in compressed hydrogen, QUANTUM EL, 28(11), 1998, pp. 1017-1019
Citations number
4
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
QUANTUM ELECTRONICS
ISSN journal
10637818 → ACNP
Volume
28
Issue
11
Year of publication
1998
Pages
1017 - 1019
Database
ISI
SICI code
1063-7818(199811)28:11<1017:ESOIPP>2.0.ZU;2-5
Abstract
A channel formed by self-focusing of 30-ps pump pulses of wavelength 1.06 m u m and energy of up to 40 mJ in high-pressure hydrogen (with a pressure of up to 120 atm) was probed by second-harmonic pulses delayed in time with r espect to the pump pulses. This revealed scattering of efficiency which inc reased from zero to almost total scattering with increasing delay time. The effect is interpreted as scattering by optical inhomogeneities formed by a n acoustic perturbation excited under conditions of a nonuniform temperatur e distribution along the self-focusing channel.