Ring-like damage morphologies produced by continuous-wave laser irradiation

L. N. Taylor; J. J. Talghader

doi:10.1117/12.2067956

31 October 2014 Ring-like damage morphologies produced by continuous-wave laser irradiation

L. N. Taylor, J. J. Talghader

Proceedings Volume 9237, Laser-Induced Damage in Optical Materials: 2014; 92371L (2014) https://doi.org/10.1117/12.2067956
Event: SPIE Laser Damage, 2014, Boulder, Colorado, United States

Abstract

The surface damage morphologies produced by continuous-wave laser irradiation of coated optics were measured and analyzed. A few laser damage morphologies were observed to be bull’s-eye patterns. It is noted that the bull’s-eye pattern has some similarities to Bessel distributions of the form found in solutions of basic heat transfer or surface acoustic wave problems, which may indicate a relationship. If these morphologies are truly thermal phenomenon, then the Bessel ring diameter would be a function of thermal diffusivity. This might indicate that the ring diameter could be used to assess the resistance of a film to laser damage.

Citation Download Citation

L. N. Taylor and J. J. Talghader "Ring-like damage morphologies produced by continuous-wave laser irradiation", Proc. SPIE 9237, Laser-Induced Damage in Optical Materials: 2014, 92371L (31 October 2014); https://doi.org/10.1117/12.2067956

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