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Monolithic spectrometer based on intersubband transitions in quantum wells

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3 Author(s)
Duboz, J.Y. ; Central Res. Lab., Thomson-CSF, Orsay, France ; Rosencher, E. ; Laurent, N.

We present a new device based on the association of a quantum-well infrared photodetector and an asymmetric quantum-well infrared modulator in a three-terminal monolithic structure. This device is shown to allow the spectral analysis of an infrared signal. A large tunability and a constant responsivity make this device an ideal candidate for a solid-state infrared spectrometer

Published in:

Quantum Electronics, IEEE Journal of  (Volume:30 ,  Issue: 7 )