Electrically-driven heterodyne detection ...
Document type :
Communication dans un congrès avec actes
DOI :
Title :
Electrically-driven heterodyne detection of a multifrequency THz-wave with a photomixer
Author(s) :
Constantin, Florin Lucian [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Scientific editor(s) :
Laurence P. Sadwick
Tianxin Yang
Tianxin Yang
Conference title :
SPIE OPTO
City :
San Francisco
Country :
Etats-Unis d'Amérique
Start date of the conference :
2021-03-06
Book title :
SPIE Proceedings
Journal title :
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIV
Publisher :
SPIE
English keyword(s) :
frequency conversion
heterodyne detection
demodulation
low-temperature-grown GaAs
photomixer
heterodyne detection
demodulation
low-temperature-grown GaAs
photomixer
HAL domain(s) :
Physique [physics]/Physique [physics]/Optique [physics.optics]
Sciences de l'ingénieur [physics]/Electromagnétisme
Physique [physics]/Physique [physics]/Instrumentations et Détecteurs [physics.ins-det]
Sciences de l'ingénieur [physics]/Micro et nanotechnologies/Microélectronique
Sciences de l'ingénieur [physics]/Electromagnétisme
Physique [physics]/Physique [physics]/Instrumentations et Détecteurs [physics.ins-det]
Sciences de l'ingénieur [physics]/Micro et nanotechnologies/Microélectronique
English abstract : [en]
The spectral components of a multifrequency THz-wave may be characterized using the nonlinear electrical response of a low temperature grown GaAs photomixer. The heterodyne detection with the photomixer is exploited to ...
Show more >The spectral components of a multifrequency THz-wave may be characterized using the nonlinear electrical response of a low temperature grown GaAs photomixer. The heterodyne detection with the photomixer is exploited to down-convert a radiofrequency-modulated THz-wave to the microwave domain, by using a suitably tuned optical beat that acts as local oscillator. The photomixer is electrically driven with an alternative voltage oscillating at the modulation frequency and provides a phase-sensitive DC response signal indicating the demodulation of the THz-wave.Show less >
Show more >The spectral components of a multifrequency THz-wave may be characterized using the nonlinear electrical response of a low temperature grown GaAs photomixer. The heterodyne detection with the photomixer is exploited to down-convert a radiofrequency-modulated THz-wave to the microwave domain, by using a suitably tuned optical beat that acts as local oscillator. The photomixer is electrically driven with an alternative voltage oscillating at the modulation frequency and provides a phase-sensitive DC response signal indicating the demodulation of the THz-wave.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Source :
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- SPIE-Photonics-West-2021_THzTechnologyApplications_contribution.pdf
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