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uv fluorescence of cerium-doped lutetium and lanthanum trifluorides, potential tunable coherent sources from 2760 to 3220 A

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.89792· OSTI ID:7316700
Broad-band uv flurescence is reported for LaF/sub 2/ : Ce/sup 3 +/ (2760--3120 A) and LuF/sub 3/ : Ce/sup 3 +/ (2880--3220 A). The five-peak excitation spectrum expected for the 5d state of Ce/sup 3 +/ in a noncubic crystal field is observed. The fluorescence quantum yields for LaF/sub 3/ : 1% Ce/sup 3 +/ and LuF/sub 3/ : 0.1% Ce/sup 3 +/ are 0.9 and 0.82, respectively. Estimates of the threshold power for lasing action suggest that a laser system tunable from 2760 to 3220 A is feasible with noble-gas--halide lasers as pumping sources.
Research Organization:
General Electric Corporate Research and Development, Schenectady, New York 12301
OSTI ID:
7316700
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 31:9; ISSN APPLA
Country of Publication:
United States
Language:
English