Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/78873
Type: Artigo de periódico
Title: Coherent acoustic phonons in PbTe quantum dots
Author: Thoen, ER
Steinmeyer, G
Langlois, P
Ippen, EP
Tudury, GE
Cruz, CHB
Barbosa, LC
Cesar, CL
Abstract: Femtosecond pump-probe studies at 1.5 mu m of PbTe quantum dots in a glass matrix have revealed oscillations due to a spheroidal acoustic mode. The wavelength dependence of the observed frequencies indicates size selectivity. The frequency and damping of the mode as a function of wavelength agree with the predictions of an acoustic continuum model that suggests that the dominant damping mechanism is radiative loss from the dots to the surrounding glass. (C) 1998 American Institute of Physics. [S0003-6951(98)03241-0].
Country: EUA
Editor: Amer Inst Physics
Rights: aberto
Identifier DOI: 10.1063/1.122406
Date Issue: 1998
Appears in Collections:Unicamp - Artigos e Outros Documentos

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