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Magneto‐optical effects of Ge‐Ga‐Sb(In)‐S chalcogenide glasses with diamagnetic responses
Author(s) -
Chen Gang,
Xu Yantao,
Guo Haitao,
Cui Xiaoxia,
Wang Pengfei,
Lu Min,
Xiao Xusheng,
Guo Quan,
Peng Bo
Publication year - 2017
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.14808
Subject(s) - verdet constant , diamagnetism , chalcogenide , analytical chemistry (journal) , materials science , refractive index , absorption edge , wavelength , ion , faraday effect , chalcogenide glass , absorption (acoustics) , condensed matter physics , chemistry , optoelectronics , physics , magnetic field , organic chemistry , chromatography , quantum mechanics , band gap , composite material
The Faraday effects of Ge‐Ga‐Sb(In)‐S serial chalcogenide glasses were investigated at the wavelengths of 635, 808, 980, and 1319 nm, respectively. The compositional dependences were analyzed and associated influencing factors including the absorption edge, the concentration of Sb 3+ /In 3+ ions, and the wavelength dispersion of refraction index were discussed. 80GeS 2 ·20Sb 2 S 3 composition glass was found to have the largest Verdet constant ( V =0.253, 0.219, 0.149, and 0.065 min·G −1 ·cm −1 for wavelengths 635, 808, 980, and 1319 nm, respectively) in these glasses, which is larger than that of commercial diamagnetic glasses (Schott, SF 6, V =0.069 min·G −1 ·cm −1 @633 nm, for example). Sb 3+ ions with high polarizability possessing s 2 ‐sp electron jumps involving 1 S 0 → 1 P 1 , 3 P 0,1,2 transitions are responsible for large Verdet constant, and Becquerel rule is proved to be an effective guidance for estimating the Verdet constant and further optimizing the compositions in chalcogenide glasses.