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Near‐infrared quantum cutting of Eu 2+ /Yb 3+ codoped chalcohalide glasses
Author(s) -
Yan Qiqi,
Ren Jing,
Tong Yu,
Chen Guorong
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.12303
Subject(s) - photon , infrared , excitation , quantum efficiency , atomic physics , energy transfer , dipole , chemistry , materials science , physics , optoelectronics , optics , quantum mechanics , organic chemistry
Near‐infrared ( NIR ) quantum cutting involving the emission of two NIR photons for each visible photon absorbed is realized from Eu 2+ /Yb 3+ codoped chalcohalide glasses. Excitation, emission and decay spectra are measured to prove the occurrence of cooperative energy transfer ( ET ) from Eu 2+ to Yb 3+ . The maximum ET efficiency obtained is as high as 85%. The ET from Eu 2+ to Yb 3+ is followed by dipole‐dipole interaction. The possible mechanism of ET is discussed.