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Journal or Publication Title:
Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես
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Title:
COHERENT TERAHERTZ EMISSION FROM PHOTOCONDUCTIVE ANTENNA
Creator:
Kh. Nerkararyan ; S. Hovsepyan ; E. Gevorgyan ; N. Margaryan
Subject:
Physics ; Instruments, apparatus, components common to several branches of physics
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Abstract:
The presence of a capacitor with the resonant medium in a core essentially changes a character of THz radiation of photoconductive antenna. We obtain a coherent radiation at the frequency of elementary excitation (LO phonon or plasmon). The power of this radiation a little differs from a usual THz source. The energy of pulse to the suggested source is much more than the energy of a usual source because of the greater duration of radiation. It is possible to use this process as a new method in spectroscopic investigations.
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