Photocurrent self-oscillations in a direct-gap GaAs-AlAs superlattice

被引:14
|
作者
Ohtani, N
Hosoda, M
Grahn, HT
机构
[1] ATR, OPT & RADIO COMMUN RES LABS, KYOTO 61902, JAPAN
[2] PAUL DRUDE INST FESTKORPERELEKT, D-10117 BERLIN, GERMANY
关键词
D O I
10.1063/1.118417
中图分类号
O59 [应用物理学];
学科分类号
摘要
Undamped photocurrent self-oscillations have been observed in a direct-gap GaAs-AlAs superlattices. The oscillations in the MHz regime appear over a wide voltage range, where the time-averaged I-V characteristic exhibits a strong negative differential conductivity. The frequency distribution is strongly dependent on the applied voltage and the laser intensity. (C) 1997 American Institute of Physics.
引用
收藏
页码:375 / 377
页数:3
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