Analysis of amplitude characteristics of quantum photodetectors with a large photosensitive area
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- 作者：O. K. Baranovskii ; I. R. Gulakov ; V. B. Zalesskii and A. O. Zenevich
- 关键词：PACS numbers 29.40.Wk – ; 85.60.Dw – ; 85.60.Gz
- 刊名：Instruments and Experimental Techniques
- 出版时间：March, 2008
- 出版年：2008
- 期刊代码：13_00204412
- 类别：et
- 卷：51
- 期：2
- 页码：275-279
- 数据来源：sp
摘要
Pulse amplitude distributions of avalanche photodetectors with a metal-resistive layer-semiconductor structure and a 7-mm2 photosensitive area are investigated in the photon-counting mode. It is shown that p-n junction heterogeneities in a space charge region affect the shape of amplitude distributions of photocurrent pulses, as the overvoltage increases and light spot changes its position on the photosensitive area. The comparative analysis of the amplitude characteristics of the above avalanche photodetectors and commercial ΦД-115д avalanche photodiodes is conducted.