Study of hot carrier relaxation in quantum wells by subpicosecond Raman scattering

Dai-sik Kim; Peter Y. Yu

doi:10.1117/12.20706

1 August 1990 Study of hot carrier relaxation in quantum wells by subpicosecond Raman scattering

Dai-sik Kim, Peter Y. Yu

Proceedings Volume 1282, Ultrafast Laser Probe Phenomena in Bulk and Microstructure Semiconductors III; (1990) https://doi.org/10.1117/12.20706
Event: Advances in Semiconductors and Superconductors: Physics Toward Devices Applications, 1990, San Diego, CA, United States

Abstract

Relaxation of hot carriers excited by subpicosecond laser pulses has been studied by Raman scattering in GaAs/AlAs multiple quantum wells with well widths varying between 100 and 1000 A. The hot phonon population observed by Raman scattering is found to decrease with the well width despite the fact that the hot electron temperature remains constant. The results are explained in terms of confinement of both electrons and optical phonons in quantum wells.

Citation Download Citation

Dai-sik Kim and Peter Y. Yu "Study of hot carrier relaxation in quantum wells by subpicosecond Raman scattering", Proc. SPIE 1282, Ultrafast Laser Probe Phenomena in Bulk and Microstructure Semiconductors III, (1 August 1990); https://doi.org/10.1117/12.20706

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