Birefringent properties of poly-lactic acid at terahertz range

Birefringent properties of poly-lactic acid at terahertz range
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DOI：
10.1109/irmmw-thz.2016.7758642
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发表时间：
2016-11
期刊：
2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)
影响因子：
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通讯作者：
H. Iwasaki;M. Okano;Nozomu Komatsubara;Madoka Nakamura;A. Moriwaki;Harumi Sato;S. Watanabe
H. Iwasaki;M. Okano;Nozomu Komatsubara;Madoka Nakamura;A. Moriwaki;Harumi Sato;S. Watanabe
中科院分区：
其他
文献类型：
--
作者：
H. Iwasaki;M. Okano;Nozomu Komatsubara;Madoka Nakamura;A. Moriwaki;Harumi Sato;S. Watanabe

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我们报告了太赫兹频率范围内聚乳酸薄膜的两个光轴之间的折射率差（Δn）与拉伸比的关系。我们发现通过改变拉伸比可以将Δη控制在0-0.04的范围内。结果表明，我们可以设计具有任意延迟的太赫兹波片，这将有助于建立成本低廉且易于批量生产的聚合物基太赫兹光学元件。
We report on a drawing-ratio dependence of the refractive index difference between the two optic axes (Δn) of poly lactic acid films in terahertz frequency range. We found that Δη can be controlled in a range of 0-0.04 by changing the drawing ratio. The result shows that we can design a terahertz wave plate with arbitral retardation, which will be useful for establishing polymer-based terahertz optical component with low cost and easy implementation in mass production.