Mid-infrared optical nonlinearities of chalcogenide glasses in Ge-Sb-Se ternary system
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Dai, Shixun; Chen, Feifei; Xu, Yinsheng; Xu, Zhe; Shen, Xiang; Xu, Tiefeng; Wang, Rongping; Ji, Wei
Description
Optical nonlinearities of chalcogenide glasses in the Ge-Sb-Se ternary system are investigated at mid-infrared wavelengths (2000 and 2500 nm) with femtosecond Z-scan technique. Strong nonlinear refraction in the chalcogenide glasses is observed at 2000 nm, due to three-photon absorption resonance. In addition, the variation in the nonlinear refraction (γ) of the Ge-Sb-Se glasses shows two jumpoints as mean co-ordination number (MCN) approaches 2.4 or 2.7, consistent with the theoretical...[Show more]
Collections | ANU Research Publications |
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Date published: | 2015-01-20 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/13628 |
Source: | Optics express |
DOI: | 10.1364/OE.23.001300 |
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