Photoconductive response of PbSnTe(In) in the terahertz spectral range

Details Photoconductive response of PbSnTe(In) in the terahertz spectral range Photoconductive response of PbSnTe(In) in the terahertz spectral range

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spie.7453e..14k&link_type=abstract

Infrared Spaceborne Remote Sensing and Instrumentation XVII. Edited by Khokhlov, Dmitry; Galeeva, Aleksandra; Dolzhenko, Dmitry

Physics

Scientific paper

We have analyzed photoconductivity in PbSnTe(In) under the action of ~100 ns long terahertz laser pulses with the wavelength 90 - 500 μm in the temperature range 4.2-300 K. Strong photoresponse has been observed at all wavelengths used. Positive persistent photoconductivity is observed at T < 10 K, whereas negative non-persistent photoresponse prevails at higher temperatures T ~ 25 K. Specific features of photoconductivity are discussed.

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