Title :
Monolithic spectrometer based on intersubband transitions in quantum wells
Author :
Duboz, J.Y. ; Rosencher, E. ; Laurent, N.
Author_Institution :
Central Res. Lab., Thomson-CSF, Orsay, France
fDate :
7/1/1994 12:00:00 AM
Abstract :
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
Keywords :
infrared detectors; infrared spectroscopy; optical modulation; photodetectors; semiconductor quantum wells; spectrometers; asymmetric quantum-well infrared modulator; intersubband transitions; quantum-well infrared photodetector; responsivity; solid-state infrared spectrometer; three-terminal monolithic structure; tunability; Electrons; Electrooptic modulators; Gallium arsenide; Infrared detectors; Infrared spectra; Optical modulation; Oscillators; Photodetectors; Quantum well devices; Spectroscopy;
Journal_Title :
Quantum Electronics, IEEE Journal of
