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- W2597746233 abstract "摘要 利用Z扫描技术在透明区域研究了Fe2O3纳米微粒水溶胶和表面包覆有机溶胶的非线性光学特性,给出了非线性折射率γ、双光子吸收系数β、自由载流子折射系数σr和自由载流子吸收截面σab等重要物理参数,讨论了自由载流子效应对Fe2O3纳米微粒非线性特性的影响 Abstract The nonlinear optical properties of Fe2O3 nanoparticles coated with a layer of organic molecules(DBS) in toluene and bare nanoparticles in hydrosol have been studied in the transparency region by Z scan technique.The key parameters such as nonlinear refractive index γ,two-photon absorption coefficient β and the variation of refractive index per unit photoexcited carrier density σr as well as free-carrier absorption cross section σab were determined.The influences of free-carrier effects on optical nonlinearities of Fe2O3 nanoparticles were discussed. 作者及机构信息 余保龙1, 张桂兰1, 汤国庆1, 吴晓春1, 陈文驹1, 杨斌洲2 (1)南开大学现代光学研究所; (2)中国科学院西安光学精密机械研究所瞬态光学技术国家重点实验室 基金项目: 国家攀登计划及中国科学院西安光学精密机械研究所瞬态光学技术国家重点实验室基金资助的课题. Authors and contacts YU BAO-LONG1, ZHANG GUI-LAN1, TANG GUO-QING1, WU XIAO-CHUN1, CHEN WEN-JU1, YANG BIN-ZHOU2 (1)南开大学现代光学研究所; (2)中国科学院西安光学精密机械研究所瞬态光学技术国家重点实验室 参考文献 施引文献" @default.
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- W2597746233 date "1997-01-01" @default.
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- W2597746233 title "STUDYING ON NONLINEAR OPTICAL PROPERTIES OF Fe2O3 NANOPARTICLES IN COLLOIDAL SOLUTION" @default.
- W2597746233 doi "https://doi.org/10.7498/aps.46.579" @default.
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