Abstract
Self-channeling of high power subpicosecond ultraviolet (248 nm) laser pulses has been observed experimentally in various high pressure gases. The propagation zone was observed to be approximately 2 µm in diameter and 3 mm in length, a distance of about 100 Rayleigh ranges. Theoretical modeling of relativistic and charge- displacement self-channeling of laser pulses in plasmas with our experimental parameters yield results which are in qualitative agreement with the experimental observations.
© 1993 Optical Society of America
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