期刊
APPLIED SCIENCES-BASEL
卷 10, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/app10010053
关键词
metamaterial; beam splitter; polarization
Featured Application Authors are encouraged to provide a concise description of the specific application or a potential application of the work. This section is not mandatory. Here, we present blueprints for three types of ultra-thin beam splitters based on versatile fishnet metamaterial structures at the 1.55 optical communication wavelength. The thicknesses of the designed polarizing beam splitter and partially polarizing beam splitter are 1/26 of the free-space wavelength, while the thickness of the non-polarizing beam splitter is 1/13 of the free-space wavelength. Numerical simulations show that, compared to other miniaturization approaches including popular dielectric metasurfaces, metal-based metamaterial approach can provide much thinner beam splitters with reasonable performance. Such beam splitters can enable miniaturization of conventional and advanced quantum photonic systems towards higher density, scalability, and functionality.
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