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2.0 μm Emission Properties and Energy Transfer between Ho 3+ and Tm 3+ in PbO—Bi 2 O 3 —Ga 2 O 3 Glasses
Author(s) -
Shin Yong Beom,
Lim Hyung Tack,
Choi Yong Gyu,
Kim You Song,
Heo Jong
Publication year - 2000
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2000.tb01275.x
Subject(s) - analytical chemistry (journal) , energy transfer , fluorescence , emission spectrum , materials science , wavelength , relaxation (psychology) , activation energy , chemistry , spectral line , nuclear chemistry , optics , physics , molecular physics , optoelectronics , psychology , social psychology , chromatography , astronomy
Emission properties of 2.0 μm fluorescence and the energy transfer between Ho 3+ and Tm 3+ in 57PbO·25Bi 2 O 3 ·18Ga 2 O 3 (mol%) glass codoped with Ho 3+ and Tm 3+ were investigated. Cross‐relaxation rates in Tm 3+ increased approximately 5 times when the Tm 2 O 3 concentration was increased from 1.0 to 1.5 wt%. Coefficients of the forward Tm 3+ → Ho 3+ energy transfer were about 15 times larger than those of the Tm 3+ ← Ho 3+ backward transfer. Analysis of the energy transfer and gain spectra indicated that the highest gain at the 2.0 μm wavelength region could be achieved from the glass with 1.5 wt% of Tm 2 O 3 and 0.3 wt% of Ho 2 O 3 .