Unique features and capabilities using quantum wells for infrared detection and imaging

This paper presents a few unique features and capabilities using quantum wells for infrared detection and imaging. We first review the basics and key shortcomings of quantum well infrared photodetectors (QWIPs), and point out the possible directions for improvement. We then present the idea of the integrated QWIP and LED for optically readout imaging device. Discussions of different schemes of fabricating multicolor QWIPs follow. Finally, we present the high frequency capabilities of QWIPs.

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