Optical property of gold nanoparticle embedded chalcogenide glasses

Feifei Chen (1) , Beijing Qiao (1) , Shixun Dai (1) , Xianghua Zhang (2) , Wei Ji (3)

1 University of Nottingham Ningbo [China]
2 ISCR - Institut des Sciences Chimiques de Rennes
3 NUS - National University of Singapore

Gold nanoparticles (Au-NPs) were prepared within bulk Ge-Sn-Se chalcogenide glass (ChG) by the thermal treatment method. In the ChG matrix, growth of the Au-NPs with optical activity gives rise to a threshold behavior of optical bandgap of the ChG. By using Z-scan and optical parametric amplify techniques, improved mid-infrared third-order optical nonlinearity, namely larger nonlinear refraction without multi-photon absorption, was observed in the nanocomposites at a mid-infrared wavelength of 3 mu m. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Domaines: Chimie

Feifei Chen, Beijing Qiao, Shixun Dai, Xianghua Zhang, Wei Ji. Optical property of gold nanoparticle embedded chalcogenide glasses. Optical Materials Express, 2018, 8 (10), pp.3197-3207. ⟨10.1364/OME.8.003197⟩. ⟨hal-01902039⟩