Subnanosecond polarisation detector for infrared and terahertz radiation

Author

Kiermaier, J. ; Weber, W. ; Danilov, S.N. ; Schuh, D. ; Gerl, Ch ; Wegscheider, W. ; Bougeard, D. ; Abstreiter, G. ; Prettl, W. ; Ganichev, S.D.

Author_Institution

Terahertz Center, Univ. of Regensburg, Regensburg

fYear

2007

fDate

2-9 Sept. 2007

Firstpage

124

Lastpage

125

Abstract

We report on a room temperature detector of infrared/THz laser radiation allowing to measure the radiation polarization state with picosecond time resolution. The ellipticity of radiation is analyzed applying three photoelectric phenomena: circular photogalvanic effect, linear photogalvanic effect, and photon drag effect. Each of these effects is monitored by different detector units stacked together in one detector.

Keywords

electromagnetic wave polarisation; infrared detectors; photoconductivity; photovoltaic effects; submillimetre wave detectors; submillimetre wave lasers; temperature measurement; circular photogalvanic effect; infrared laser radiation; linear photogalvanic effect; photoelectric phenomena; photon drag effect; subnanosecond polarisation detector; terahertz laser radiation; Biomedical optical imaging; Geometrical optics; Infrared detectors; Molecular beam epitaxial growth; Optical polarization; Optical scattering; Optical sensors; Photovoltaic effects; Pulse amplifiers; Radiation detectors; Detectors; ellipticity; helicity; infrared and terahertz radiation; quantum wells;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on

Conference_Location

Cardiff

Print_ISBN

978-1-4244-1438-3

Type

conf

DOI

10.1109/ICIMW.2007.4516422

Filename

4516422