Wavelength dispersion of Verdet constants in chalcogenide glasses for magneto-optical waveguide devices
Wavelength dispersion of Verdet constants in chalcogenide glasses for magneto-optical waveguide devices
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DOI：
10.1016/j.optcom.2005.03.037
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发表时间：
2005-08
影响因子：
2.4
通讯作者：
Y. Ruan;R. Jarvis;A. Rode;S. Madden;B. Luther-Davies
中科院分区：
文献类型：
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作者：
Y. Ruan;R. Jarvis;A. Rode;S. Madden;B. Luther-Davies
研究了As-S、As-Se-S、Ge-As-Se和Ga-La-S基块状硫系玻璃在675-1550 nm波长范围内的费尔德常数的色散。Ge33As12Se55在1550 nm处的费尔德常数最大，为0.0485min/g cm，是二氧化硅的30倍。Ge33As12Se55的高Verdet常数与其较小的带隙能有关。通过改变Ge-Se基硫系玻璃的组成进一步改善其Verdet常数，使其有望成为集成磁光器件的材料。
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 1550nm. Ge33As12Se55was found to have the highest Verdet constant, 0.0485min/G.cm at 1550nm, 30 times that of silica. The high Verdet constant of Ge33As12Se55is 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.