Novel photoelectric techniques characterization of semiconductor laser and photodetector materials

Author

Gnatenko, Yu.P. ; Piryatinski, Yu.P. ; Gamernyk, R.V. ; Skubenko, P.A. ; Kolendryckyj, D.D. ; Bukivskij, P.M. ; Faryna, I.O. ; Lendel, V.V.

Author_Institution

Inst. of Phys., Nat. Acad. of Sci. of Ukraine, Kyiv

Volume

2

fYear

2003

fDate

16-20 Sept. 2003

Firstpage

110

Abstract

In this work for the first time we have developed a novel and efficient techniques for characterization of nonlinear and laser materials by using a time-resolved photoelectric spectroscopy which allows the measurements of the form of laser pulse as well as the pulse photocurrent (PPC) appearing in the crystal during laser excitation with the time window about 0.1 ns. For the excitation of crystal the pulse nitrogen laser was used. The pulse power was 5 KW. In this experiment the photorefractive V-doped CdTe and CdHgTe crystals were investigated. This technique includes the additional monochromatic illumination the front surface of the samples. Changing the wavelength of monochromator, one can carry out the recording of the time-resolved spectrum which is caused by the change in PPC which caused the detrapping of electrons photogenerated by the pulse laser excitation. For the purpose of the more complete characterization of the investigated CdTe:V crystals the absorption, photogalvanic current and photoconductivity spectra were measured

Keywords

cadmium compounds; monochromators; nitrogen; optogalvanic spectra; photoconductivity; photoemission; photoionisation; photorefractive materials; semiconductor lasers; time resolved spectroscopy; vanadium; 0.1 ns; 5 kW; CdHgTe; CdHgTe crystals; CdTe:V; N; absorption; laser excitation; laser material; laser pulse; monochromatic illumination; nonlinear material; photoconductivity spectra; photodetector materials; photoelectric technique; photogalvanic current; photorefractive V-doped CdTe; pulse nitrogen laser; pulse photocurrent; semiconductor laser; time window; time-resolved photoelectric spectroscopy; Crystalline materials; Crystals; Laser excitation; Optical materials; Optical pulses; Photoconductivity; Photodetectors; Pulse measurements; Semiconductor lasers; Semiconductor materials;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Optoelectronics and Lasers, 2003. Proceedings of CAOL 2003. First International Conference on

Conference_Location

Alushta, Crimea

Print_ISBN

0-7803-7948-9

Type

conf

DOI

10.1109/CAOL.2003.1251279

Filename

1251279