A criterion for threshold equivalence between static and scanning irradiation of laser beam

Yaojun Wu; Qunshu Wang; Xisheng Ye; Chuanxiang Tang; Xinwei Lin; Menglian Zhou

doi:10.1117/12.2010785

16 May 2013 A criterion for threshold equivalence between static and scanning irradiation of laser beam

Yaojun Wu, Qunshu Wang, Xisheng Ye, Chuanxiang Tang, Xinwei Lin, Menglian Zhou

Proceedings Volume 8796, 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012); 879609 (2013) https://doi.org/10.1117/12.2010785
Event: 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012), 2012, Xi'an, Shaanxi, China

Abstract

Both scanning laser irradiation mode and the static mode can cause damage to the materials with different thresholds. In this paper, a simple criterion is derived theoretically to equate the threshold of static irradiation with the scanning one for flat-top laser so that the two damage threshold at different scanning velocity can be compared. The results of numerical simulations are in good agreement with the criterion, and the preliminary experiments verify the criterion.

Citation Download Citation

Yaojun Wu, Qunshu Wang, Xisheng Ye, Chuanxiang Tang, Xinwei Lin, and Menglian Zhou "A criterion for threshold equivalence between static and scanning irradiation of laser beam", Proc. SPIE 8796, 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012), 879609 (16 May 2013); https://doi.org/10.1117/12.2010785

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