Sub picosecond hot hole relaxation in germanium studied by time-resolved intervalence band Raman scattering measurements

K. Tanaka; H. Ohtake; H. Nansei; T. Suemoto

International Quantum Electronics Conference
OSA Technical Digest (Optica Publishing Group, 1994),
paper QMF1

Sub picosecond hot hole relaxation in germanium studied by time-resolved intervalence band Raman scattering measurements

K. Tanaka, H. Ohtake, H. Nansei, and T. Suemoto

International Quantum Electronics Conference 1994

Anaheim, California United States
8–13 May 1994
ISBN: 1-55752-342-8

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Ultrafast Physics (QMF)

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K. Tanaka, H. Ohtake, H. Nansei, and T. Suemoto, "Sub picosecond hot hole relaxation in germanium studied by time-resolved intervalence band Raman scattering measurements," in International Quantum Electronics Conference, J. Shah, C. Weiman, R. Freman, and J. Fujimoto, eds., Vol. 9 of OSA Technical Digest (Optica Publishing Group, 1994), paper QMF1.

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Abstract

Inter-and intra-band relaxation are essentially important for the nonequilibrium dynamics of hot carriers in semiconductors in the ultrafast time region. These processes have been investigated by time-resolved absorption or luminescence spectroscopy which are based on the sub-picosecond pump-probe technique. In this paper, we present the first, to our knowledge, time-resolved intervalence band Raman scattering (TRIVRS) measurements in germanium and we discuss the thermalization and cooling process of hot holes.

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