Time Evolution of Frequency Spectrum in CdS with Acousto-Electrically Amplified Phonon Flux
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概要
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The non-linear effect of the phonon frequency spectrum in semiconducting DdS is studied by observing the spectrum after removal of d.c. field by means of the Brillouin scattering, but the present paper does not concern with the frequency shift of the acoustic gain due to trapping of carriers in the piezo-potential. After switching off the applied voltage, the low frequency components (150∼300 MHz) does not decay. The high frequency components (1500∼2000 MHz) attenuates slowly at very initial stage and the middle frequency components (about 800 MHz) attenuate rapidly. These results are well explained by the energy down or up conversion, in good agreement with the computer calculation of the non-linear coupled integrodifferential equations. In semiconducting CdS in the experimental frequency range (120∼2100 MHz), the phonon-phonon process due to the usual lattice anharmonicity is dominated in comparison with the process due to the effective anharmonicity with electrons (Hutson mechanism).
- 社団法人日本物理学会の論文
- 1974-10-15
著者
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Tsubouchi Kazuo
Department Of Electronics Faculty Of Engineering Nagoya University
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Arizumi Tetsuya
Department Of Electronics Faculty Of Engineering Nagoya University
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Arizumi Tetsuya
Department Of Electronic Engineering Faculty Of Engineering Nagoya University
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Tsubouchi Kazuo
Department Of Electronics Faculty Of Engineering Nagoya University:(present Address) Tohoku Universi
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