Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/69698
Type: Artigo de periódico
Title: Hot-phonon bottleneck in the photoinjected plasma in GaN
Author: Vasconcellos, AR
Luzzi, R
Rodrigues, CG
Freire, VN
Abstract: The evolution on the picosecond scale of the macroscopic (nonequilibrium thermodynamic) state of a highly excited photoinjected plasma in bulk GaN is analyzed. We present the equations of evolution for the quasitemperature (level of excitation) of the hot carriers and of the optical phonons. A hot-phonon temperature overshoot is evidenced, as well as a preferential production of phonons in excess of equilibrium in a reduced off-center region of the Brillouin zone. A comparative analysis of the influence of the length of the exciting laser pulse is also performed. (C) 2003 American Institute of Physics.
Country: EUA
Editor: Amer Inst Physics
Rights: aberto
Identifier DOI: 10.1063/1.1566467
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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