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Polarization-Dependent Elliptical and Rectangular Mie Voids
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DOI：10.1002/smll.202511992.png)
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Abstract
En 中文
Polarization is a key element in the design of nanophotonic devices, such as metasurfaces. It can be used as a parameter to change the performance of an optical device, for example, its transmission spectrum, or in conjunction with tailored anisotropies in nanostructures to control the geometric phase. To design polarization-sensitive nanophotonic systems, we therefore require anisotropic elements with tailored optical properties. Mie voids, which take the form of lower-index inclusions in a higher-index material, have exhibited unique optical properties, such as the confinement of light in air at visible and ultraviolet wavelengths. In this study, we introduce anisotropy to this system to create polarization-dependent Mie void resonances in elliptical and rectangular voids. We systemically investigate the dependence of the resonances on the geometry of the voids, study the optical mode formation in the system, and demonstrate polarization-dependent nanoscale color printing. The combination of polarization-dependent Mie voids and established nanophotonic elements can enable the design of new classes of metasurface designs and advanced polarization-sensitive photonic devices.
Keywords:
metasurface
Mie void
polarization
structural color
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