Abstract
Chirped-pulse amplification in the ultraviolet region is demonstrated by use of a broadband laser medium. A modified bow-tie-style four-pass amplifier pumped by 100-mJ, 266-nm pulses from a -switched Nd:YAG laser has a gain factor of 370 and delivers 6-mJ, 290-nm pulses. After dispersion compensation, the output pulses can be compressed to 115 fs.
© 2001 Optical Society of America
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