Wavelength dispersion of Verdet constants in chalcogenide glasses for magneto-optical waveguide devices
作者： Yinlan Ruan , Ruth A. Jarvis , Andrei V. Rode , Steve Madden , Barry Luther-Davies
DOI: 10.1016/J.OPTCOM.2005.03.037
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摘要: Abstract The wavelength dispersion of the Verdet constants bulk As–S, As–Se–S, Ge–As–Se and Ga–La–S-based chalcogenide glasses has been investigated at wavelengths between 675 1550 nm. Ge33As12Se55 was found to have highest constant, 0.0485 min/G.cm 1550 nm, 30 times that silica. high constant is related its smaller band gap energy compared with other glasses. Further improvement Ge–Se-based by engineering their compositions could make them promising materials for integrated magneto-optical devices.
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