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Systematic z-scan measurements of the third order nonlinearity of chalcogenide glasses

Wang, Ting; Gai, Xin; Wei, Wenhou; Wang, Rongping; Yang, Zhiyong; Shen, Xiang; Madden, Steve; Luther-Davies, Barry


We report measurements of the third order optical nonlinearity of 51 chalcogenide glasses in the near infrared. Substituting more polarizable elements (Se for S, Sb for As) into the glasses increased their nonlinearity but also reduced the optical bandgap increasing two-photon absorption. Overall the measured values are an extremely good fit to the semi-empirical Miller’s rule whilst the normalized real and imaginary parts are in satisfactory agreement with the scaling for indirect gap...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Optical Materials Express
DOI: 10.1364/OME.4.001011


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