High-speed infrared detection by uncooled photovoltaic quantum well infrared photodetectors

被引：30
|
作者：
Schneider, H
Schonbein, C
Bihlmann, G
vanSon, P
Sigg, H
机构：
[1] DELFT UNIV TECHNOL, DEPT APPL PHYS, NL-2600 GA DELFT, NETHERLANDS
[2] PAUL SCHERRER INST, CH-8048 ZURICH, SWITZERLAND
来源：
APPLIED PHYSICS LETTERS | 1997年 / 70卷 / 12期
关键词：
D O I：
10.1063/1.118628
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have investigated the temporal response of uncooled photovoltaic quantum well infrared photodetectors (PV QWIP) using 2 ps pulses from a free electron laser. We measured rise and fall times of s ps and 63 ps, respectively. We have also determined the temperature dependence of the voltage responsivity and resistance of the sample from 70 K to 300 K. Based on these measurements, we discuss the figures of merit of PV QWIPs in a high-bandwidth 50 mu environment. (C) 1997 American Institute of Physics.
引用
收藏
页码：1602 / 1604
页数：3
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