Large third-order optical nonlinear effects of gold nanoparticles with unusual fluorescence enhancement |
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| Authors: | Lv Jing Jiang Li Li Cuihong Liu Xiaofeng Yuan Mingjian Xu Jialiang Zhou Weidong Song Yinglin Liu Huibiao Li Yuliang Zhu Daoben |
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| Affiliation: | Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China. |
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| Abstract: | The third-order nonlinear optical properties of two solutions of gold nanoparticles protected by carbazolyldiacetylene derivatives were investigated using the Z-scan technique. Both gold nanoparticle colloid solutions in toluene show unusual fluorescent enhancement and large third-order nonlinear optical properties including nonlinear absorption and refractive effects. When extending the pi-conjugated length of the ligands, the third-order nonlinear properties of composite materials based on gold nanoparticles were enhanced accordingly. |
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