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Bidirectional Energy Transfer in Bi‐Tm‐Codoped Glasses
Author(s) -
Li Yang,
Ma Zhijun,
Sharafudeen Kaniyarakkal,
Dong Guoping,
Qiu Jianrong
Publication year - 2014
Publication title -
international journal of applied glass science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 34
eISSN - 2041-1294
pISSN - 2041-1286
DOI - 10.1111/ijag.12056
Subject(s) - luminescence , materials science , photoluminescence , excited state , energy transfer , excitation , optoelectronics , laser , wavelength , doping , infrared , optics , atomic physics , physics , quantum mechanics
In this manuscript, we report an ultrabroadband luminescence covering the whole 1000–1800 nm in Bi n m +singly doping glass, and a superbroadband emission from 1000 to 2000 nm in Bi n m + ‐Tm 3+ ‐codoped glasses excited at 808, 980 nm, respectively. We also confirm a bidirectional energy transfer mechanism between Bi n m +and Tm 3+ . Broadband luminescence is used to realize 1–2 μm optical amplifier and tunable laser. Luminescent properties of glasses are investigated systematically. Peak position and intensity of the near‐infrared emission depend strongly on excitation wavelength. Based on a collaborative investigation of the photoluminescence and luminescence decay, a plausible bidirectional energy transfer mechanism between Bi n m +and Tm 3+ is confirmed.