New detection scheme for THz radiation - photon momentum detector

Author

Willer, Ulrike ; Pohlkoetter, Andreas ; Schade, Wolfgang ; Tredicucci, Alessandro

Author_Institution

Inst. fur Phys. und Phys. Technol., Tech. Univ. Clausthal, Clausthal-Zellerfeld

fYear

2008

fDate

4-9 May 2008

Firstpage

1

Lastpage

2

Abstract

The radiation of a quantum cascade laser (QCL) at 2.8 THz is detected using the transmitted photon momentum to drive a quartz tuning fork. The radiation is modulated and focused onto the side of one prong giving rise to a driven oscillation of the tuning fork which is measured using the generated piezo current.

Keywords

laser tuning; laser variables measurement; optical modulation; photodetectors; quantum cascade lasers; quartz; submillimetre wave detectors; submillimetre wave lasers; QCL laser; THz radiation detection; frequency 2.8 THz; generated piezo current; modulated radiation; quantum cascade laser radiation; transmitted photon momentum detector; tuning fork driven oscillation measurement; Bolometers; Infrared detectors; Laser tuning; Optical tuning; Photonics; Quantum cascade lasers; Radiation detectors; Resonance; Resonant frequency; Vibrations; (040.2235) Detectors: Far infrared or terahertz; (230.0040) Detectors;

fLanguage

English

Publisher

iet

Conference_Titel

Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on

Conference_Location

San Jose, CA

Print_ISBN

978-1-55752-859-9

Type

conf

Filename

4571617