Laser & Optoelectronics Progress, Volume. 49, Issue 1, 11404(2012)
Criteria Study of Laser Induced Damage
Scientific experiments show that damage to optical materials is related with factors like laser wavelength, material properties, laser pulse width, etc. The final stage of damage is various, which can be melting, crack and ablation. In an effort to explain these phenomena, we run a semi-quantitative discussion on the optical material damage mechanism regarding the thermal conduction equation, presenting a key parameter that determines the relationship between laser induced damage and laser pulse width τp—the time τ it takes for the inclusion within the optical material to transfer its heat to the body. When τpτ, the damage threshold is determined by laser radiation intensity; when τpτ, the damage threshold is determined by laser radiation energy density.
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Yin Xianhua, Zhang Guowen, Zhou Shenlei, Ma Weixin. Criteria Study of Laser Induced Damage[J]. Laser & Optoelectronics Progress, 2012, 49(1): 11404
Category: Lasers and Laser Optics
Received: Sep. 16, 2011
Accepted: --
Published Online: Nov. 9, 2011
The Author Email: Xianhua Yin (yinxianhua99@126.com)