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Proceedings Paper

Electroabsorption in high-power photoconductive switches
Author(s): Hongen Shen; Robert A. Lux; Jagadeesh Pamulapati; Mitra B. Dutta; Robert J. Zeto
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Paper Abstract

Photoconductive semiconductor switches are useful for the generation of high voltage electrical pulses with picosecond rise times. In addition, the availability of high power semiconductor laser arrays allows the elimination of large flash-lamp pumped solid state lasers. In this paper, the role of electro-absorption is investigated. A theoretical model has been formulated which combines measured field and wavelength dependent absorption data with a one dimensional drift and diffusion model. The results of the model indicate the existence of optimum parameters for both pump wavelength and pump intensity before a plateau of diminishing returns is achieved. The results along with a detailed explanation of the theoretical formalism is included in the paper.

Paper Details

Date Published: 12 May 1992
PDF: 8 pages
Proc. SPIE 1632, Optically Activated Switching II, (12 May 1992); doi: 10.1117/12.59061
Show Author Affiliations
Hongen Shen, U.S. Army Electronics Technology and Devices Lab. (United States)
Robert A. Lux, U.S. Army Electronics Technology and Devices Lab. (United States)
Jagadeesh Pamulapati, U.S. Army Electronics Technology and Devices Lab. (United States)
Mitra B. Dutta, U.S. Army Electronics Technology and Devices Lab. (United States)
Robert J. Zeto, U.S. Army Electronics Technology and Devices Lab. (United States)


Published in SPIE Proceedings Vol. 1632:
Optically Activated Switching II
Guillermo M. Loubriel, Editor(s)

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