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首页> 外文期刊>Proceedings of the institution of mechanical engineers >Design of terahertz wave polarizer based on thin film structure with micrometer scale
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Design of terahertz wave polarizer based on thin film structure with micrometer scale

机译:基于微米级薄膜结构的太赫兹波偏振器设计

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摘要

With the rapid development of terahertz radiation sources and detectors, there is also a great demand for terahertz filters. The quantitative studies on polarizer have been carried out in other spectral range, but the studies on terahertz wave polarizer are still very limited. Therefore, it is valuable to investigate the design of a polarizer in the terahertz range. In this article, tellurium and polystyrene thin film is used to compose a symmetrical structure, and then 10 periods of this structure are used in our design. A terahertz wave polarizer with micrometer scale is gained. Results of simulations show that the polarizer has a high performance in reflectivity for transverse-electric part polarized terahertz wave as well as low reflectivity for transverse-magnetic part polarized terahertz wave. The work frequency and incident angle of our design are 0.5 THz and 45°, respectively, and it has a reasonable incident angle range.
机译:随着太赫兹辐射源和探测器的快速发展,对太赫兹滤光片的需求也很大。偏振器的定量研究已经在其他光谱范围内进行,但是太赫兹波偏振器的研究仍然非常有限。因此,研究太赫兹范围内的偏振器的设计非常有价值。在本文中,碲和聚苯乙烯薄膜用于组成对称结构,然后在我们的设计中使用该结构的10个周期。获得具有微米级的太赫兹波偏振器。仿真结果表明,该偏振片对横向电部分太赫兹波的反射率较高,而对横向磁部分太赫兹波的反射率较低。我们设计的工作频率和入射角分别为0.5 THz和45°,并且具有合理的入射角范围。

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