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Enhanced 2.0 μm Emission and Lowered Upconversion Emission in Fluorogermanate Glass‐Ceramic Containing LaF 3 : Ho 3+ / Yb 3+ by Codoping Ce 3+ Ions
Author(s) -
Zhang JiaPeng,
Zhang WeiJuan,
Yuan Jian,
Qian Qi,
Zhang QinYuan
Publication year - 2013
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/jace.12599
Subject(s) - photon upconversion , photoluminescence , materials science , fluorescence , laser , ion , ceramic , emission spectrum , spectral line , analytical chemistry (journal) , infrared , optoelectronics , doping , optics , physics , chemistry , composite material , chromatography , quantum mechanics , astronomy
Intense 2.0 μm emission of Ho 3+ has been achieved through Yb 3+ sensitization in fluorogermanate glass‐ceramic ( GC ) containing LaF 3 pumped with 980 nm laser diode ( LD ). The observation of concurrent emissions at 538, 650, and 1192 nm points to the additional deexcitation routes based on infrared‐to‐visible upconversion processes and Ho 3+ : 5 I 6 → 5 I 8 radiative transition. Comparative investigations of photoluminescent spectra and decay curves have indicated the effective role of Ce 3+ ions in enhancing the 2.0 μm fluorescence along with suppressing the occurrence of these concurrent emissions. This would offer a promising approach to develop compact and efficient 2.0‐μm laser systems.