Paper-based Optical Components for the THz Region
Paper-based Optical Components for the THz Region
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太赫兹区域纸基光学元件
DOI：
10.1109/irmmw-thz.2018.8510036
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Lees R
中科院分区：
文献类型：
--
作者：
Lees R
提出了一种适合于聚焦太赫兹辐射的激光切割纸样。这种设计为太赫兹光学元件的原型和生产提供了极低成本的途径。利用多层纸堆和液体吸收法，研究了衍射双菲涅耳透镜，使太赫兹辐射以最优的180°相移通过纸。传统的菲涅耳透镜设计已经扩展到产生多个焦点和探索其他形状（例如六边形）。
Laser-cut paper patterns which are suitable for focusing terahertz radiation are presented. Such designs provide an extremely low-cost route for the prototyping and production of terahertz optical components. Diffractive binary Fresnel lenses have been explored using a multilayer paper stack and a liquid absorption method in order to phase shift THz radiation through paper by the optimum 180°. The conventional Fresnel lens design has been extended to produce multiple focal spots and explore alternative shapes (e.g. hexagonal).