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]

Scientific editor(s) :

Laurence P. Sadwick
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

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

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 >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523

Source :

Harvested from HAL