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Proceedings Paper

Nonlinear Transmission Of Semiconductor Thin Films
Author(s): E. W. Van Stryland; Steven A. Miller; B. S. Wherrett
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Paper Abstract

We observe two-photon absorption (2PA) of picosecond, 0.6 μm, 0.25 nJ pulses in a 0.4 μm film of ZnSe. We use high-frequency modulation phase- sensitive detection to be near the shot noise limit, followed by a low frequency pulse delay modulation to discriminate against large thermal nonlinearities. This dual modulation technique, combined with the field enhancement produced by placing the film in a resonant cavity, allows observation of 2PA and other fast nonlinearities using pulses having peak powers of the order of a Watt.

Paper Details

Date Published: 22 April 1987
PDF: 4 pages
Proc. SPIE 0794, Modern Optical Characterization Techniques for Semiconductors and Semiconductor Devices, (22 April 1987); doi: 10.1117/12.940923
Show Author Affiliations
E. W. Van Stryland, North Texas State University (United States)
Steven A. Miller, North Texas State University (United States)
B. S. Wherrett, Heriot-Watt University (Scotland)


Published in SPIE Proceedings Vol. 0794:
Modern Optical Characterization Techniques for Semiconductors and Semiconductor Devices
Orest J. Glembocki; Fred H. Pollak; Jin-Joo Song, Editor(s)

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