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Effect of Introduction of Chloride on the Upconversion Emission Intensity in Er‐ and Yb‐Codoped ZBLAN Fluoride Glasses
Author(s) -
Inoue Satoru,
Soga Kohei,
Makishima Akio
Publication year - 1993
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.1151-2916.1993.tb03944.x
Subject(s) - zblan , photon upconversion , fluoride , barium fluoride , chloride , materials science , emission intensity , intensity (physics) , inorganic chemistry , nuclear chemistry , chemistry , doping , optoelectronics , optics , metallurgy , physics , nuclear physics , fiber laser , wavelength
The effect of the introduction of chloride or bromide on the upconversion fluorescence intensity in Er‐ and Yb‐codopea ZBLAN fluoride glasses is investigated. The introduction of chloride enhanced the emission intensity by up to about 70% of the initial value at 550 nm for samples excited by a Nd:YAG laser. The addition of bromide increased the emission intensity at 550 nm by about 35%. The enhancement of the emission intensity seems to result from the reduction of the multiphonon relaxation rate.