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Abstracts
A metallic film bolometer with heat capacity C is in contact with thermal bath and with crystalline specimen and is biased by a constant current I_b. The thermal contact of the bolometer is characterized by the thermal conductance G. The bolometer operates in the linear regime of dependence of resistance on temperature characterized by a constantα. Experiments which allow one to measureα, C, and G are proposed. The characteristic timeτ=C/G and characteristic current I_m=√{G/α} affect the effective relaxation rateΛ of the bolometer resistance R_b(t). The knowledge of the power W(t) absorbed by detector allows one to calculate R_b(t). The inverse problem of calculation of W(t) from known R_b(t) is also solved. The suitable algorithms are proposed. Deconvoluted absorbed power is obtained for experiments performed on GaAs and compared with phonoconductivity signal of two-dimensional electron gas structure as well as with results of Monte Carlo computer experiments.
Discipline
Journal
Year
Volume
Issue
Pages
325-338
Physical description
Dates
published
2003-04
received
2002-09-30
revised
2002-12-09
(unknown)
2003-02-20
Contributors
author
- Institute of Physics, National Academy of Sciences of Ukraine, Prospect Nauki 46, 252650 Kiev, Ukraine
author
- Chair of Physics, Rzeszów University of Technology, Pola 2, 35-959 Rzeszów, Poland
author
- Institute of Physics, University of Rzeszów, Rejtana 16A, 35-310 Rzeszów, Poland
author
- Institute of Physics, University of Rzeszów, Rejtana 16A, 35-310 Rzeszów, Poland
References
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Document Type
Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv103n405kz