Diode-Pumped Violet Energy Upconversion in BaF 2 :Er 3
Abstract
Under 805-nm diode-laser excitation we detected intense upconversion signals at 410, 380, and 275 nm in BaF 2 :Er 3 . Energy upconversion schemes and efficiencies are discussed in detail. Intensity parameters of Er 3 in BaF 2 were derived as 2 1.048 0.117 10 20 cm 2 , 4 1.478 0.180 10 20 cm 2 , and 6 1.009 0.127 10 20 cm 2 .
- Publication:
-
Applied Optics
- Pub Date:
- November 1998
- DOI:
- 10.1364/AO.37.007805
- Bibcode:
- 1998ApOpt..37.7805P