High-resolution optical spectrum analyzer based on moving space charge field effects in photoconductive semiconductors

Author

Chen-Chia Wang ; Davidson, Fraser

Author_Institution

Dept. of Electr. & Comput. Eng., Johns Hopkins Univ., Baltimore, MD, USA

fYear

1996

fDate

2-7 June 1996

Firstpage

94

Lastpage

95

Abstract

Summary form only given. Spatially inhomogeneous optical intensity patterns are created when two mutually coherent optical fields interfere inside photoconductive semiconductors with a finite intersection angle. Diffusion of photo-generated free-charge carriers ensues due to the nonzero concentration gradient, resulting in the formation of an internal space charge electric field. This paper shows the experimental results for an optical spectrum analyzer based on such a moving space charge field in a photoconductive CdTe:V:Mn sample.

Keywords

photoconducting devices; space charge; spectral analysers; CdTe:V,Mn; high-resolution optical spectrum analyzer; moving space charge field; photoconductive semiconductor; Optical attenuators; Optical beams; Optical filters; Optical sensors; Photoconductivity; Power harmonic filters; Pulse measurements; Space charge; Spectral analysis; Transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1996. CLEO '96., Summaries of papers presented at the Conference on

Conference_Location

Anaheim, CA, USA

Print_ISBN

1-55752-443-2

Type

conf

Filename

864408