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Proceedings Paper

The growth and Raman scattering studies of TGSP crystal as the room temperature infrared detector
Author(s): R. Malekfar; B. Abbasi
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Paper Abstract

The partial substitution of sulphate (SO42-) by phosphate (PO43-) in triglycine sulfate (TGS) single crystal can improve the properties of the TGS family crystal as room temperature infrared (IR) detector. Phosphoric acid (H3PO4)-doped triglycine sulfate (TGSP) single crystal has strong pyroelectric properties due to its high pyroelectric coefficient and reasonably low dielectric constant. This family of single crystals can grow easily and rapidly and are reasonably good uniform detectors in the electromagnetic region from UV to IR at room temperature and without using cryogenic cooling. TGSP single crystals were grown by saturated solution method. In order to investigate the detection sensitivity of the TGSP crystal, single crystals with different dopant concentration of phosphate (PO43-) ion were grown. A rather complete back-scattering Raman scattering spectra and hysteresis loops of the grown crystals were recorded and compared with each other. The Raman spectra and their assignments only will be reported here.

Paper Details

Date Published: 29 September 2005
PDF: 12 pages
Proc. SPIE 5957, Infrared Photoelectronics, 59571U (29 September 2005); doi: 10.1117/12.625013
Show Author Affiliations
R. Malekfar, Univ. of Tarbiat Modarres (Iran)
B. Abbasi, Univ. of Tarbiat Modarres (Iran)

Published in SPIE Proceedings Vol. 5957:
Infrared Photoelectronics
Antoni Rogalski; Eustace L. Dereniak; Fiodor F. Sizov, Editor(s)

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