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Double modulation techniques in Fourier Transform infrared photoluminescence

Doppelmodulationsverfahren in der Infrarot-Photolumineszenz-Fourierspektroskopie

: Fuchs, F.; Lusson, A.; Koidl, P.; Wagner, J.

	Cameron, D.G. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.: 7th International Conference on Fourier Transform Spectroscopy 1989. Proceedings Bellingham/Wash.: SPIE, 1989 (Proceedings of SPIE 1145) ISBN: 0-8194-0181-1 pp.323-326 : Abb.,Lit.
	International Conference on Fourier Transform Spectroscopy <7, 1989, Fairfax/Va.>

	English
	Conference Paper
	Fraunhofer IAF ()
	Fourier transform; GaAs; infrared spectroscopy; Infrarot-Spektroskopie; local vibrational modes; lokalisierte Schwingungsmode; luminescence; spectroscopy

Abstract
FT photoluminescence is a powerful tool to study mid infrared emission. However, problems may arise from thermal background radiation. A new phase locked modulation technique is presented and will be compared with existing double modulation (lock-in) techniques. The basic idea in our new technique is to apply a phase sensitive excitation of the luminescence instead of phase sensitive detection to separate the luminescence spectra from dominant thermal background radiation. As examples, luminescence of ZnS:Ni and Hg0.73Cd0.27Te are studied.

: http://publica.fraunhofer.de/documents/PX-10148.html