论文标题
Terahertz非线性指数通过全相分析提取
Terahertz Nonlinear Index Extraction via Full-Phase Analysis
论文作者
论文摘要
我们通过实验表明，通过标准的时间域光谱仪，使用全相分析，使用全相分析，使用全相分析，通过标准的时间段光谱仪，通过标准的时间分析显示了液态水，水蒸气，α-pineene和Si的频谱平均非线性非线性折射率和吸收系数。我们的结果证实，在该方案中，液体样品的非线性折射指数超过了近红外光学非线性指数，高于六个数量级。在大气压下的液态水和水蒸气的情况下，我们发现一个非线性指数分别为7.8x10^-10 cm^2/w和6x10^-11 cm^2/w，这两者都比预期大得多。
We experimentally show the spectrally averaged nonlinear refractive index and absorption coefficient for liquid water, water vapor, α-pinene, and Si using a full-phase analysis in the terahertz regime through a standard time-domain spectrometer. Our results confirm that the nonlinear index of refraction of the liquid samples in this regime exceeds the near-infrared optical nonlinear index by six orders of magnitude. In the case of liquid water and water vapor at atmospheric pressure, we find a nonlinear index of 7.8x10^-10 cm^2/W and 6x10^-11 cm^2/W respectively, which are both much larger than expected.
