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Proceedings Paper

Effect of magnetic quantization on the pulse power output of spontaneous emission for II-VI and IV-VI lasers operated at low temperature
Author(s): Kamakhya Prasad Ghatak; Bhaswati Mitra; Shambhu Nath Biswas
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Paper Abstract

In this paper an attempt is made to investigate the effect of magnetic quantization on tbe pulse power output of spontaneous emission from II-VI and IV-VI lasers operated at relatively low temperatures, on the assumption that the radiative recombination occurs through the recombination centers which obey the well-known Shockley-Read statistics, by formulating the magneto-dispersion laws of the said materials. We have studied the pulse power out-put in the presence of a quantizing magnetic field by considering the combined influences of spin and broadening of Landau levels. It is found, taking CdS laser and PbTe laser as examples, that the pulse power output exhibits oscillatory dependence and increases with increasing carrier density in an oscillatory way. It is also shown that the power output at both low and relatively higher operating temperatures may pass through a maximum or may continuously decrease with increasing magnetic field at the quantum limit. The corresponding results for wide-gap lasers have been obtained as special cases of our generalized formulations.

Paper Details

Date Published: 1 April 1991
PDF: 12 pages
Proc. SPIE 1411, Pulse Power for Lasers III, (1 April 1991); doi: 10.1117/12.43626
Show Author Affiliations
Kamakhya Prasad Ghatak, Jadavpur Univ. (India)
Bhaswati Mitra, Jadavpur Univ. (India)
Shambhu Nath Biswas, Bengal Engineering College (India)


Published in SPIE Proceedings Vol. 1411:
Pulse Power for Lasers III
G. Glen McDuff, Editor(s)

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