Journal
JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY
Volume 17, Issue 6, Pages 507-510Publisher
WILEY
DOI: 10.1889/JSID17.6.507
Keywords
Two-photon simultaneous absorption; upconversion luminescence
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Funding
- National Natural Science Foundation of China [50672087]
- National Basic Research Program of China [2006CB806000b]
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Near-infrared-to-visible upconversion luminescence was observed in Sm3+-doped ZnO-B2O3-SiO2 glass under femtosecond laser irradiation. The luminescence spectra show that the upconversion luminescence originates from 4G(5/2) to H-6(j/2) (j = 5, 7, 9) transition of Sm3+. The dependence of the fluorescence intensity of Sm3+ on the pump power indicates that a two-photon absorption process is dominant in the conversion of infrared radiation to the visible luminescence. The analysis of the upconversion mechanism reveals that the simultaneous absorption of two infrared photons produces the population of upper excited states, which leads to the characteristic orange-red emission of Sm3+. A three-dimensional display is demonstrated based on the multiphoton absorption upconversion luminescence.
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