2-PHOTON INTERSUBBAND TRANSITIONS IN QUANTUM-WELL INFRARED PHOTOCONDUCTORS

被引：18

作者：

DUPONT, E ^{[1
]}

CORKUM, P ^{[1
]}

LIU, HC ^{[1
]}

WILSON, PH ^{[1
]}

BUCHANAN, M ^{[1
]}

WASILEWSKI, ZR ^{[1
]}

机构：

[1] NATL RES COUNCIL CANADA,INST MICROSTRUCT SCI,OTTAWA K1A 0R6,ONTARIO,CANADA

来源：

APPLIED PHYSICS LETTERS | 1994年 / 65卷 / 12期

关键词：

D O I：

10.1063/1.113004

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate that a symmetric GaAs/GaAlAs quantum well photodetector with a peak responsivity centered at 8.1 mum shows a significant quadratic power response at 10.6 mum. This is due to intersubband two-photon transitions from the ground level to continuum states. The two-photon responsivity agrees with a theoretical prediction based on a perturbative approach and photoconductive gain estimations.

引用

页码：1560 / 1562

页数：3

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