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
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)