The Influence of Defects on the Absorption of Terahertz Radiation in a CdSiP2 Single Crystal.

Autor:	Nozdrin, V. S., Chuchupal, S. V., Komandin, G. A., Kurlov, V. N., Porodinkov, O. E., Spektor, I. E., Katyba, G. M., Schunemann, P. G., Zawilski, K. T.
Předmět:	RADIATION absorption SUBMILLIMETER waves SINGLE crystals CHALCOPYRITE crystals TERAHERTZ spectroscopy SEPARATION of variables
Zdroj:	Optics & Spectroscopy; Jul2020, Vol. 128 Issue 7, p1004-1009, 6p
Abstrakt:	The transmission and reflection spectra of a CdSiP2 single crystal are measured in the temperature interval from 80 to 300 K using the terahertz (THz) pulsed and infrared Fourier spectroscopy methods. A significant influence of postgrowth defects on the absorption in the THz frequency range is revealed. This absorption is found to depend weakly on temperature compared to that observed previously for other chalcopyrite crystal with substantially lower concentration of defects. Upon cooling, intrinsic absorption mechanisms are minimized, and the contribution of defects to absorption is separated. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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