Noise gain in single quantum well infrared photodetectors

被引：18
|
作者：
Carbone, A [1 ]
Mazzetti, P [1 ]
机构：
[1] POLITECN TORINO, IST NAZL FIS MAT, I-10129 TURIN, ITALY
来源：
APPLIED PHYSICS LETTERS | 1997年 / 70卷 / 01期
关键词：
D O I：
10.1063/1.119294
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A new approach to the calculation of current noise in single quantum well infrared photodetectors is proposed. The modulation noise due to the fluctuation of the emitter barrier potential is taken into account by considering the correlation between the elementary pulses constituting the excess current injected from the emitter when the quantum well is depleted by electrons. A simple relationship between the noise gain and the photoconductive gain of the device is obtained. A comparison with experiments is also reported. (C) 1997 American Institute of Physics.
引用
收藏
页码：28 / 30
页数：3
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