We present numerical simulations of propagation of ultraviolet pulses through fused silica using a model that allows for the accumulative action of compaction back on the light. Compaction-induced self-focusing causes the light field to develop into a pattern of hot spots around the incident aperture that correlates with the damage patterns observed during marathon experiments designed to determine the onset of microchannel formation.
© 1999 Optical Society of America
[Optical Society of America ]
Ewan M. Wright, Masud Mansuripur, Vladimir Liberman, and Keith Bates, "Spatial Pattern of Microchannel Formation in Fused Silica Irradiated by Nanosecond Ultraviolet Pulses," Appl. Opt. 38, 5785-5788 (1999)