Abstract
Circular craters with diameters of 500 nm are fabricated on the surface of fused silica by femtosecond ultraviolet–infrared (UV–IR) pulse trains with 0.8 nJ UV pulse energy. UV damage thresholds at different IR energies and UV–IR delays are measured. Diameters and depths of the ablated craters can be modified by adding the IR pulse and varying the UV–IR delays. These results demonstrate the feasibility of nanomachining using short wavelength lasers with pulse energy far below normal damage thresholds.
© 2014 Optical Society of America
Full Article | PDF ArticleMore Like This
X. Yan, L. Jiang, X. Li, K. Zhang, B. Xia, P. Liu, L. Qu, and Y. Lu
Opt. Lett. 39(17) 5240-5243 (2014)
Xiaoming Yu, Qiumei Bian, Zenghu Chang, P. B. Corkum, and Shuting Lei
Opt. Express 21(20) 24185-24190 (2013)
N. T. Nguyen, A. Saliminia, W. Liu, S. L. Chin, and R. Vallée
Opt. Lett. 28(17) 1591-1593 (2003)