Thermal damage in InSb(PV) detector induced by CW laser

zhao jian-jun; song chun-rong; zhang ling-zhen; niu yan-xiong

Volume 17 Issue 07

Jul. 2005

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Article Navigation > High Power Laser and Particle Beams > 2005 > 17(07): 0-

zhou jin shan, liu guo zhi, peng peng, et al. Experimental studies on microwave coupling coefficient for differentshaped apertures[J]. High Power Laser and Particle Beams, 2004, 16.

Citation:

zhao jian-jun, song chun-rong, zhang ling-zhen, et al. Thermal damage in InSb(PV) detector induced by CW laser[J]. High Power Laser and Particle Beams, 2005, 17.

zhou jin shan, liu guo zhi, peng peng, et al. Experimental studies on microwave coupling coefficient for differentshaped apertures[J]. High Power Laser and Particle Beams, 2004, 16.

Citation:

zhao jian-jun, song chun-rong, zhang ling-zhen, et al. Thermal damage in InSb(PV) detector induced by CW laser[J]. High Power Laser and Particle Beams, 2005, 17.

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Thermal damage in InSb(PV) detector induced by CW laser

1.
Section of Physics-Chemistry,Ordnance Engineering College,Shijiazhuang 050003,China;
2.
Section of Optics,Ordnance Engineering College,Shijiazhuang 050003,China

Publish Date: 2005-07-15

Abstract

Abstract

A physical model of InSb(PV) detector irradiated by CW laser was established. The distribution of temperature was studied by Gaussian beam with 2-D thermal model. The relationship between the temperature transformation and irradiation time was obtained. By numerical method, it was found that the damage of InSb material irradiated by CW laser was melt, and it took place firstly at the center of the laser-facing surface. The higher the laser power was, the less damage time was needed. With the same laser power density, thinner sub needed less irradiation time. For a definite sub, the damage threshold of laser was higher than a certain Imin. Whereas Imin was higher for thinner sub. To improve the anti-irradiation ability, it was necessary to diminish the thickness of sub. Additionally, the ca
- thermal damage,
- insb(pv) detector,
- gaussian beam,
- damage threshold

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