Shot noise suppression in avalanche photodiodes

被引：8

作者：

Ma, F ^{[1
]}

Wang, SL ^{[1
]}

Campbell, JC ^{[1
]}

机构：

[1] Univ Texas, Dept Elect & Comp Engn, Ctr Microelect Res, Austin, TX 78712 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.95.176604

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We identify a new shot noise suppression mechanism in a thin (similar to 100 nm) heterostructure avalanche photodiode. In the low-gain regime the shot noise is suppressed due to temporal correlations within amplified current pulses. We demonstrate in a Monte Carlo simulation that the effective excess noise factors can be < 1, and reconcile the apparent conflict between theory and experiments. This shot noise suppression mechanism is independent of known mechanisms such as Coulomb interaction, or reflection at heterojunction interfaces.

引用

页数：4

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