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Type: Journal article
Title: Wavelength dispersion of Verdet constants in chalcogenide glasses for magneto-optical waveguide devices
Author: Ruan, Y.
Jarvis, R.
Rode, A.
Madden, S.
Luther-Davies, B.
Citation: Optics Communications, 2005; 252(1-3):39-45
Publisher: Elsevier Science BV
Issue Date: 2005
ISSN: 0030-4018
Statement of
Yinlan Ruan, Ruth A. Jarvis, Andrei V. Rode, Steve Madden and Barry Luther-Davies
Abstract: The wavelength dispersion of the Verdet constants of bulk As–S, As–Se–S, Ge–As–Se and Ga–La–S-based chalcogenide glasses has been investigated at wavelengths between 675 and 1550 nm. Ge₃₃As₁₂Se₅₅ was found to have the highest Verdet constant, 0.0485 min/ at 1550 nm, 30 times that of silica. The high Verdet constant of Ge₃₃As₁₂Se₅₅ is related to its smaller band gap energy compared with the other glasses. Further improvement of the Verdet constants of the Ge–Se-based chalcogenide glasses by engineering their compositions could make them promising materials for integrated magneto-optical devices.
Keywords: Verdet constant
Chalcogenide glasses
Faraday rotation
DOI: 10.1016/j.optcom.2005.03.037
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