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Response of Indium Antimonide at Sub-Terahertz and Terahertz Frequencies

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cris.lastimport.scopus2024-02-12T20:52:26Z
dc.abstract.enResponsivity of a bulk InSb detector at liquid helium temperature was studied in the frequency range 0.1 THz < f < 2.5 THz. The detector was exposed to a monochromatic radiation and its response was registered as a function of magnetic field up to 7 T. Due to a very strong magnetoresistance of InSb, a dependence of the photocurrent on magnetic field shows a totally different shape than that of the photoresistance. Thus, photoconductivity was found to be the only reliable way of data presentation. The detector develops a resonant response, related to the cyclotron resonance absorption, at f greater than or similar to 0.5 THz but this response dominates the spectrum only at f greater than or similar to 1 THz. At f less than or similar to 1 THz the response is mainly non-resonant and is caused by intra-band transitions. We conclude that an InSb detector can be used as a magnetic-field-tunable spectroscopic element only if one can assure that the frequency of photons which reach the detector is higher than about 1 THz.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorYavorskiy, Dmitriy
dc.contributor.authorKarpierz, Krzysztof
dc.contributor.authorGrynberg, Marian
dc.contributor.authorŁusakowski, Jerzy
dc.date.accessioned2024-01-25T19:14:16Z
dc.date.available2024-01-25T19:14:16Z
dc.date.issued2017
dc.description.financeNie dotyczy
dc.identifier.doi10.12693/APHYSPOLA.132.338
dc.identifier.issn0587-4246
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/118497
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofActa Physica Polonica A
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleResponse of Indium Antimonide at Sub-Terahertz and Terahertz Frequencies
dc.typeJournalArticle
dspace.entity.typePublication