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Proceedings Paper

Reflectivity of HgCdTe and PbS during laser annealing
Author(s): Jinjing Feng; Song Li; Jixiang Yan; Shouhuan Zhou
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Paper Abstract

The samples of semiconductor’s surface temperature increased abruptly, when illuminated by laser pulse. The sample’s surface melted and remained liquid phase for a few hundreds ns. That caused reflectivity enhancement of the sample surface. In this article, numerical calculation was carried out on HgCdTe and PbS. And a 1mm-thick HgCdTe was used as the sample in the experiments. In the experiments, the sample was illuminated by laser pulse of 60ns duration from a Q-switched Nd:YAG laser. A beam from He-Ne laser was used as the monitor beam to illustrated the reflectivity changes of the sample. The results of the experiments were the conclusive evidences of our numerical calculation of the dynamic behavior in the sample.

Paper Details

Date Published: 13 January 2005
PDF: 8 pages
Proc. SPIE 5629, Lasers in Material Processing and Manufacturing II, (13 January 2005); doi: 10.1117/12.574640
Show Author Affiliations
Jinjing Feng, Beijing Institute of Technology (China)
Song Li, Beijing Institute of Technology (China)
Jixiang Yan, Beijing Institute of Technology (China)
Shouhuan Zhou, North China Research Institute of Electro-Optics (China)


Published in SPIE Proceedings Vol. 5629:
Lasers in Material Processing and Manufacturing II
ShuShen Deng; Akira Matsunawa; Y. Lawrence Yao; Minlin Zhong, Editor(s)

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