Mechanism of the blue up-conversion in Tm3+/Nd3+-doped calcium aluminate glasses
SCIE
SCOPUS
- Title
- Mechanism of the blue up-conversion in Tm3+/Nd3+-doped calcium aluminate glasses
- Authors
- Chung, WJ; Yoo, JR; Kim, YS; Heo, J
- Date Issued
- 1997-06
- Publisher
- AMER CERAMIC SOC
- Abstract
- Blue up-conversion fluorescence from the Tm3+:(1)G(4)-->H-3(6) (480 nm) transition has been observed from calcium aluminate glass codoped with Tm3+/Nd3+. The mechanism for the up-conversion process consists of a two-photon process. An excitation beam with a wavelength of 791 nm first excites Tm3+ to the H-3(4) level, where Tm3+ again absorbs the 1060 nm emission from Nd3+:F-4(3/2)-->I-4(11/2) to attain the Tm3+:(1)G(4) level, Lifetime and intensity variations with compositions suggest the presence of an efficient energy transfer from Nd3+ to Tm3+, The highest 480 nm emission intensity has been obtained from the glass with 0.1 mol% of Nd2O3 and 0.2 mol% of Tm2O3.
- Keywords
- THORIUM FLUORIDE GLASS; FREQUENCY UPCONVERSION; ENERGY-TRANSFER; IONS; YB
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/21288
- DOI
- 10.1111/j.1151-2916.1997.tb03007.x
- ISSN
- 0002-7820
- Article Type
- Article
- Citation
- JOURNAL OF THE AMERICAN CERAMIC SOCIETY, vol. 80, no. 6, page. 1485 - 1490, 1997-06
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