| 非线性光学介质中光束自作用效应测量非线性折射率n_2的新方法(英文) |
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| 引用本文： | 龚旗煌,张玉珂,邹英华.非线性光学介质中光束自作用效应测量非线性折射率n_2的新方法(英文)[J].北京大学学报(自然科学版),1992(1). |
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| 作者姓名： | 龚旗煌 张玉珂 邹英华 |
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| 作者单位： | 物理学系
(龚旗煌，张玉珂)，物理学系(邹英华) |
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| 摘 要： | 本文报道了利用连续激光在非线性介质中发生自作用情况下,远场光斑中心光强与样品介介空间位置的关系曲线测定非线性折射率的新方法。用此法测量了茉莉花茶酒精溶液这一新的非线性介质n_2值,给出了n_2=-(1.5±0.3)×10~(-5)esu.,比CS_2的相应值大10~6倍。
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| 关 键 词： | 非线性介质 光束自作用 |
n_2 Measurement by CW Laser Beam Self-action in a New Nonlinear Medium |
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| GONG Qihuang,ZHANG Yuke,ZOU Yinghua.n_2 Measurement by CW Laser Beam Self-action in a New Nonlinear Medium[J].Acta Scientiarum Naturalium Universitatis Pekinensis,1992(1). |
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| Authors: | GONG Qihuang ZHANG Yuke ZOU Yinghua |
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| Abstract: | A simple and highly sensitive technique for determining nonlinear refractive index n2 by CW He-Ne laser beam self-action has been developed. The magnitude and sign of a new nonlinear medium, solution of jasmine tea in ethyl alcohol have been measured, the magnitude of which is 106 times larger than that of Carbondisulfide. |
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| Keywords: | Nonlinear optical medium Optical beam self-action |
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