Blue Light Emission by a Pr:LiYF4 - Laser Operated at Room Temperature,
NAVAL RESEARCH LAB WASHINGTON DC
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Room-temperature operation of a solid-state laser has been achieved for the first time in the blue region using PrYLF. The 0.2 PrYLF crystal was longitudinally pumped at 444 nm using a pulsed dye laser. Laser emission was observed at 479 nm and required a pump-energy density of 8 Jsq cm at threshold.
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