Strong upconversion luminescence in Er^(3+)/Yb^(3+)-doped halide modified tellurite glass
Chinese Optics Letters, Vol. 1, Issue 10, pp. 611-612 (2003)
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Abstract
Upconversion luminescence of Er^(3+)/Yb^(3+)-doped halide tellurite glass is investigated experimentally upon 976-nm excitation. Three intense emissions centered at 525, 545 and 655 nm owing to the transitions (2)^H_(11/2) ? (4)^I_(15/2), (4)^S_(3/2) ? (4)^I_(15/2) and (4)^F_(9/2) ? (4)^I_(15/2), respectively, are observed when pumping power is as low as 20 mW. The upconversion mechanisms and power dependent intensities are discussed. The high-populated (4)^I_(11/2) level is supposed to serve as the intermediate state responsible for the upconversion processes.
© 2005 Chinese Optics Letters
OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(160.3130) Materials : Integrated optics materials
(160.4670) Materials : Optical materials
(160.5690) Materials : Rare-earth-doped materials
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence
Citation
Jianhu Yang, Lei Wen, Shixun Dai, Lili Hu, and Zhonghong Jiang, "Strong upconversion luminescence in Er^(3+)/Yb^(3+)-doped halide modified tellurite glass," Chin. Opt. Lett. 1, 611-612 (2003)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-1-10-611
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