Publication No: 1468Search all ORC publications    

Refractive index dispersion of gallium lanthanum sulfide and oxysulfide glasses

H.Yayama, S.Fujino, H.Takebe, K.Morinaga,
Department of Materials Sciences and Technology,
Graduate School of Engineering Sciences, Kyushu
University, Fukuoka 816, Japan;

D.W.Hewak
Optoelectronics Research Centre, University of Southampton

Abstract

Gallium lanthanum sulfide-based glasses are attractive for new laser and nonlinear optical applications at near Infrared region. Refractive indexes were measured for Ga2As3-La2S3 and Ga2S3-La2O3 glasses in the range of 0.5 and 1.7 μm using the minimum deviation method. Data is analysed by Wemple and Didomenico equation. These glasses have relatively large average electronic bandgaps E0 and electronic oscillator strengths Ed in comparison with other chalcogenide glasses. Possible origins of these features are discussed.

(Abstract only available)


12th International Conference on Optical Fiber Sensors Williamsburg USA 28-31 Oct (1997)

Southampton ePrint id: 76752

 

 

 

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