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Proceedings Paper

Transient pulse propagation effects in unmagnetized and magnetoactive narrow direct-gap semiconductors
Author(s): Pranay K. Sen; Pratima Sen
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Paper Abstract

Based upon coherent radiation-semiconductor interaction, pulse propagation effects such as pulse break-up and pulse peak shifts in unmagnetized bulk narrow direct-gap semiconductors as well as pulse chirping and broadening in the above crystals in presence of a moderate magnetostatic field have been analyzed. The effect of externally applied magnetic field on the transient optical processes has been treated in terms of the Landau level splittings. Numerical analysis of nonlinear phase shift, pulse break-up, pulse chirping and broadening have been made in InSb duly irradiated by infrared pulsed lead-Salt (PbEuSeTe) or AgGaS2 dye laser with photon energy in the vicinity of the crystal band gap. The results being in good qualitative agreement with the available experimental observations suggest the suitability of the narrow-gap semiconductors in all-optical processing devices.

Paper Details

Date Published: 28 April 1999
PDF: 10 pages
Proc. SPIE 3666, International Conference on Fiber Optics and Photonics: Selected Papers from Photonics India '98, (28 April 1999); doi: 10.1117/12.347988
Show Author Affiliations
Pranay K. Sen, Shri GS Institute of Technology and Science (India)
Pratima Sen, Shri GS Institute of Technology and Science (India)


Published in SPIE Proceedings Vol. 3666:
International Conference on Fiber Optics and Photonics: Selected Papers from Photonics India '98
Anurag Sharma; Banshi Dhar Gupta; Ajoy K. Ghatak, Editor(s)

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