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Article Dans Une Revue Applied physics. A, Materials science & processing Année : 2011

External influence on third-order optical nonlinearity of transparent chalcogenide glass-ceramics

Résumé

Transparent 90GeS2⋅10Ga2S3(G10) chalcogenide glass-ceramics containing β-GeS2 nanocrystals was successfully fabricated through controllable crystallization based on the knowledge of its nucleation-rate-like curve. Using the conventional Z-scan method, both large spectral dependence and crystallinity dependence of optical nonlinear parameters were learned under the excitation of different wavelengths that in proximity of the half-bandgap. In particular, a large value of figure of merit (FOM≈11.64) was obtained in the crystallized sample after the heat-treatment at 466°C for 40 h. Although it is not a straightforward process to select an appropriate medium for a specific application, this work opens a new way to construct suitable optical nonlinear properties (e.g., large FOM) though modifying the microstructure of chalcogenide glass-ceramics.

Domaines

Matériaux

Dates et versions

hal-00719505 , version 1 (20-07-2012)

Identifiants

Citer

C. Lin, Laurent Calvez, L. Ying, F. Chen, B. Song, et al.. External influence on third-order optical nonlinearity of transparent chalcogenide glass-ceramics. Applied physics. A, Materials science & processing, 2011, 104 (2), pp.615-620. ⟨10.1007/s00339-011-6454-5⟩. ⟨hal-00719505⟩
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