Response speed of terahertz photoconductive receiver antennas when excited by femtosecond laser pulses

We have theoretically analyzed the influence of retardation effects, due to the finite velocity of propagation of electromagnetic radiation and the inertia of electrons, on the response of semiconductor photoconductive detecting antennas in the terahertz frequency range. We have established that an...

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Bibliographic Details
Published in:Journal of applied spectroscopy 2013-05, Vol.80 (2), p.289-293
Main Authors: Malevich, V. L., Sinitsyn, G. V.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Antennas (Electronics)
Atomic/Molecular Structure and Spectra
Electric waves
Electromagnetic radiation
Electromagnetic waves
Invisibility
Lasers
Nuclear radiation
Physics
Physics and Astronomy
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Summary:We have theoretically analyzed the influence of retardation effects, due to the finite velocity of propagation of electromagnetic radiation and the inertia of electrons, on the response of semiconductor photoconductive detecting antennas in the terahertz frequency range. We have established that an electron velocity lag relative to a terahertz electric field can lead to an appreciable increase in response time for GaAs-based photoconductive antennas.
ISSN:0021-9037
1573-8647
DOI:10.1007/s10812-013-9760-1