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Proceedings Paper

Melting of a semiconductor crystal (InSb) with a short laser pulse (100 fs)
Author(s): Vladimir A. Belyakov; Philip A. Heimann; Jorgen Larsson; S. Yu. Semenov; Aaron Lindenberg; P. J. Schuck; E. Judd; Philip H. Bucksbaum; Richard W. Lee; Howard A. Padmore; Justin S. Wark; Roger W. Falcone
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Paper Abstract

Time-dependent x-ray diffraction has been measured from laser-irradiated semiconductor crystals. Laser pulses with 100 fs duration and 800 nm wavelength excite the sample inducing phase transitions. 5 keV x-rays from the Advanced Light Source are diffracted by a sagittally-focusing Si (111) crystal and then by the sample crystal, InSb (111), onto an avalanche photodiode. By detecting individual pulses of synchrotron radiation, which have a duration of 70 ps, the diffracted intensity is observed to decrease because of photoabsorption in a disordered surfaced layer. Rocking curves measured after the laser irradiation show a tail, which results from a strained region caused by expansion of the crystal lattice.

Paper Details

Date Published: 11 December 1997
PDF: 5 pages
Proc. SPIE 3151, High Heat Flux and Synchrotron Radiation Beamlines, (11 December 1997); doi: 10.1117/12.294494
Show Author Affiliations
Vladimir A. Belyakov, L.D. Landau Institute for Theoretical Physics (Russia)
Philip A. Heimann, Lawrence Berkeley National Lab. (United States)
Jorgen Larsson, Univ. of California/Berkeley (United States)
S. Yu. Semenov, Russian Research Ctr. Kurchatov Institute (Russia)
Aaron Lindenberg, Univ. of California/Berkeley (United States)
P. J. Schuck, Univ. of California/Berkeley (United States)
E. Judd, Univ. of California/Berkeley (United States)
Philip H. Bucksbaum, Univ. of Michigan (United States)
Richard W. Lee, Lawrence Livermore National Lab. (United States)
Howard A. Padmore, Lawrence Berkeley National Lab. (United States)
Justin S. Wark, Univ. of Oxford (United Kingdom)
Roger W. Falcone, Univ. of California/Berkeley (United States)

Published in SPIE Proceedings Vol. 3151:
High Heat Flux and Synchrotron Radiation Beamlines
Albert T. Macrander; Ali M. Khounsary, Editor(s)

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