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首页> 外文会议>Conference on multiphoton absorption and nonlinear transmission processes: Materials, theory, and applications >I-scan measurements of the nonlinear refraction and nonlinear absorption coefficients of some nanomaterials
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I-scan measurements of the nonlinear refraction and nonlinear absorption coefficients of some nanomaterials

机译：I扫描的非线性折射和一些纳米材料的非线性吸收系数的测量

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摘要

We give the analytical expressions of the nonlinear transmittance of materials through an aperture in the far field with finite aperture size. The result can be used under the conditions of |kγIL_(eff)|<π and |βI(z,t)L_(eff|<1. Based on this equation, the nonlinear refractive index coefficients of some nanomaterials from both the closed I-scan and Z-scan measurements at 800 nm and 1064 nm were extracted, respectively. The obtained values from I-scan measurements are comparable with those from the Z-scan measurements. The nonlinear absorptions of these materials were also studied by fulfilling the open I-scan and Z-scan measurements. The advantages of I-scan technology were discussed.
机译：我们通过具有有限孔径尺寸的远场中的孔提供材料的非线性透射率的分析表达。结果可以在|KγIL_（EFF）| <π和|βi（Z，T）L_（eff | <1的条件下使用。基于该等式，来自闭合I的一些纳米材料的非线性折射率系数分别提取800nm和1064nm处的-scan和z扫描测量。来自i扫描测量的所得值与来自z扫描测量的值相当。通过满足开放，还研究了这些材料的非线性吸收I-SCAN和Z扫描测量。讨论了I-SCAN技术的优点。

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