Impulse coupling between laser and HgCdTe

Ji Liu; Xiangyang Li; Xierong Hu; Jiaxiong Fang; Guosen Xu; Jie Shen

doi:10.1117/12.189227

7 October 1994 Impulse coupling between laser and HgCdTe

Ji Liu, Xiangyang Li, Xierong Hu, Jiaxiong Fang, Guosen Xu, Jie Shen

Proceedings Volume 2274, Infrared Detectors: State of the Art II; (1994) https://doi.org/10.1117/12.189227
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

The interaction between Mercury Cadmium Telluride (MCT) and single pulse of Nd:YAG laser with 1.06 micrometers wavelength and 10 ns pulse duration was studied. The impulse delivered to MCT sample was measured by using ballistic pendulum method. The experiment shows that the momentum transfer results from material being ejected from MCT surface under the impinging of intense pulse laser. The impulse coupling coefficient of MCT gets to its maximum 14.3 dyne(DOT)s/J when incident laser power density is about 7.6 X 10⁸ W/cm². By using 1D model of gas-dynamics, the impulse coupling coefficients have been calculated. The calculated results agree well with measured ones in the region of incident power density larger than 1.5 X 10⁹ W/cm².

Citation Download Citation

Ji Liu, Xiangyang Li, Xierong Hu, Jiaxiong Fang, Guosen Xu, and Jie Shen "Impulse coupling between laser and HgCdTe", Proc. SPIE 2274, Infrared Detectors: State of the Art II, (7 October 1994); https://doi.org/10.1117/12.189227

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