ELECTRICAL TUNABILITY OF INFRARED DETECTORS USING COMPOSITIONALLY ASYMMETRIC GAAS/ALGAAS MULTIQUANTUM WELLS

被引：52

作者：

MARTINET, E

LUC, F

ROSENCHER, E

BOIS, P

DELAITRE, S

机构：

[1] Laboratoire Central de Recherches, Thomson-CSF, F-91404 Orsay Cedex, Domaine de Corbeville

来源：

APPLIED PHYSICS LETTERS | 1992年 / 60卷 / 07期

关键词：

D O I：

10.1063/1.106497

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

For the first time, an electrically tunable infrared photoconductor is made with GaAs/AlGaAs asymmetric step multiquantum wells, using the linear Stark shift of the intersubband transition. An applied electric field excursion of +/- 40 kV/cm is sufficient to shift the peak responsivity wavelength from 8.5 to 13.5-mu-m. The photoresponse tunability is studied by comparing photocurrent and absorption spectra for different applied electric fields.

引用

页码：895 / 897

页数：3

共 13 条

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