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
Original Manuscript: April 20, 1999
Revised Manuscript: June 18, 1999
Published: September 20, 1999
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)