✦ LIBER ✦

Boundary conditions of continuum states in characterizing photocurrent of GaAs/AlGaAs quantum well infrared photodetector

✍ Scribed by Y. Fu

Publisher: Elsevier Science
Year: 2001
Tongue: English
Weight: 239 KB
Volume: 30
Category: Article
ISSN: 0749-6036
DOI: 10.1006/spmi.2001.0996

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✦ Synopsis

We study the optical transition between bound-to-continuum states in a GaAs/AlGaAs multiple quantum well infrared photodetector (QWIP) by analyzing three possible boundary conditions for the continuum states. Comparing with experimental results, it has been suggested that the Bloch-state boundary conditions are proper for continuum states in the QWIPs consisting of multiple quantum wells and the fine structures in the responsivity spectrum result from the energy dispersion relationship of the multiple quantum wells.