Abstract

A novel design of an IR photodetector operating at wavelengths around 10 µm is presented. It is based on a three-level quantum coherence effect in semiconductor quantum dots as measured in balanced-homodyne detection in a Mach–Zehnder interferometer. The advantage of this design is the combination of room-temperature operation and fast response time, whereas the major drawback is the high noise-equivalent power.

© 2004 Optical Society of America

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