期刊
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
卷 7, 期 3, 页码 295-301出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TTHZ.2017.2692045
关键词
Metamaterials; reflection coefficient; radio astronomy; silicon
资金
- MEXT/JSPS KAKENHI [JP25247022]
- Research Coordination Committee
- National Astronomical Observatory of Japan (NAOJ)
- National Institutes of Natural Sciences (NINS)
- Tokyo Metropolitan Government
- JSPS [JP13J01164]
- Grants-in-Aid for Scientific Research [15H05891, 26247019, 17H01115] Funding Source: KAKEN
A broadband antireflective subwavelength structure was developed suitable for large diameter silicon or alumina lenses used in the optical systems of superconducting cameras. In this study, a broadband antireflective subwavelength structure that can be easily fabricated with a dicing blade was designed. The model comprised both a pyramidal section (550 mu m in depth) and a straight section (150 mu m in depth) to simplify fabrication with a metal bonded V-shaped blade and a normal straight dicing-blade. The simulated transmittance between 97 and 334 GHz was >90%, which is comparable to that with a 700-mu m-depth tapered structure. The structure was fabricated on a flat surface, and transmittance at cryogenic temperatures was measured using a Fourier transform spectrometer. The measured average transmittance between 186 and 346 GHz was approximately 95%, and the experimental result is in good agreement with the simulation results.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据