NASA NTRS · 20150007769
A Solid State Ultraviolet Lasers Based on Cerium-Doped LiCaAIF(sub 6) Crystal Resonator
Abstract
We report the first demonstration of a UV laser using a high-Q whispering gallery mode (WGM) resonator of Ce+: LiCaAlF6. We show that WGM resonators from LiCaAlF6 can achieve a Q of 2.6 x 10(sup 7) at UV. We demonstrated a UV laser at 290 nm with a pulsed pump laser at 266 nm. The experiments showed the low pump threshold intensity of 7.5 x 10(sup 9) W/m(sup 2) and slope efficiency of 25%. We have also observed lasing delay dynamics. These results are consistent with our modeling and theoretical estimates, and pave the way for a low threshold cw UV laser using WGM resonator cavity.
Explore related subjects
Keep this discovery
Explore connections, maps & timelines
Yu, Nan, Le, Thanh, Schowalter, Steven J., Rellergert, Wade, Jeet, Justin, Lin, Guoping, Hudson, Eric. 2012-03-01. A Solid State Ultraviolet Lasers Based on Cerium-Doped LiCaAIF(sub 6) Crystal Resonator. https://ntrs.nasa.gov/citations/20150007769
Cite the original work for its findings. Save a collection to share your selection of sources.