ABSORPTION OF LIGHT ASSISTED BY EQUILIBRIUM OPTICAL PHONONS IN GALLIUM ARSENIDE.

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作者：
Al'perovich, V.L.
Terekhov, A.S.
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来源：
| 1978年 / 12卷 / 10期
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GALLIUM ARSENIDE;
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摘要：
The influence of phonons on the long-wavelength wing of the fundamental absorption band of gallium arsenide was investigated experimentally. The absorption spectra were determined in the temperature range 4. 2-560 degree K. At temperatures T APP GRTH 200 degree K, a kink appeared in the wing. An analysis of the temperature dependence of the position of the kink and of the absorption coefficient in its vicinity indicated that the long-wavelength wing originated from the excitation of electron-hole pairs resulting from the simultaneous absorption of a photon and an optical phonon.
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页码：1143 / 1145
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