Physics – Condensed Matter – Materials Science
Scientific paper
2007-07-31
Physics
Condensed Matter
Materials Science
Scientific paper
10.1063/1.2775809
Two types of room temperature detectors of terahertz laser radiation have been developed which allow in an all-electric manner to determine the plane of polarization of linearly polarized radiation and the Stokes parameters of elliptically polarized radiation, respectively. The operation of the detectors is based on photogalvanic effects in semiconductor quantum well structures of low symmetry. The photogalvanic effects have nanoseconds time constants at room temperature making a high time resolution of the polarization detectors possible.
Abstreiter Gerhard
Bougeard Dominique
Danilov Sergey N.
Ganichev Sergey D.
Kiermaier J.
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