用于频率解复用的太赫兹聚焦炽热衍射光学元件

IF 2.3 Q2 OPTICS

Advanced Optical Technologies Pub Date : 2023-12-01 DOI:10.3389/aot.2023.1310578

M. Kaluza, P. Komorowski, P. Zagrajek, A. Siemion

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引用次数: 0

摘要

提出了一种用于太赫兹(THz)辐射空间频分解复用的新型光无源元件。设计了四种不同的衍射光学元件(DOEs)，即相kinoform透镜和相燃烧衍射光栅的组合。所设计的结构在数值模拟中得到了验证，取得了良好的效果。随后，他们使用高透明环烯烃共聚物(COC)的熔融沉积建模(FDM) 3D打印技术进行制造。在实验装置中对制造的结构进行了检验。结果与数值模拟结果吻合。因此，在150 GHz至220 GHz的范围内，每10 GHz有8个频率在空间上分开。与参考DOE相比，新颖的设计方案保证了63%的相对效率。本研究可作为太赫兹辐射频段的空间频分解复用组件，适用于6G技术电信系统的应用。

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Terahertz focusing blazed diffractive optical elements for frequency demultiplexing

This study presents the novel optical passive components for spatial frequency division demultiplexing of terahertz (THz) radiation. Four different diffractive optical elements (DOEs) were designed as the combination of phase kinoform lenses and phase blazed diffraction gratings. The designed structures were verified in numerical simulations and they showed the promising results. Subsequently, they were manufactured using fused deposition modeling (FDM) 3D printing technology from highly transparent cyclic olefin copolymer (COC). The manufactured structures were examined in the experimental setup. The results matched numerical simulations. Thus, eight frequencies in the range from 150 GHz to 220 GHz every 10 GHz were spatially separated. The novel design solution guaranteed 63% higher relative efficiency compared to the reference DOE. The presented study can be suitable as the application for 6G technology telecommunication systems as the spatial frequency division demultiplexing component for the THz radiation band.

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来源期刊

Advanced Optical Technologies OPTICS-

CiteScore

4.40

自引率

0.00%

发文量

期刊介绍： Advanced Optical Technologies is a strictly peer-reviewed scientific journal. The major aim of Advanced Optical Technologies is to publish recent progress in the fields of optical design, optical engineering, and optical manufacturing. Advanced Optical Technologies has a main focus on applied research and addresses scientists as well as experts in industrial research and development. Advanced Optical Technologies partners with the European Optical Society (EOS). All its 4.500+ members have free online access to the journal through their EOS member account. Topics: Optical design, Lithography, Opto-mechanical engineering, Illumination and lighting technology, Precision fabrication, Image sensor devices, Optical materials (polymer based, inorganic, crystalline/amorphous), Optical instruments in life science (biology, medicine, laboratories), Optical metrology, Optics in aerospace/defense, Simulation, interdisciplinary, Optics for astronomy, Standards, Consumer optics, Optical coatings.