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Controlling Electromagnetic Surface Waves with Conformal Transformation Optics | | Xiaoyu Zhao
; Hong Deng
; Xiaoke Gao
; Xikui Ma
; Tianyu Dong
; | | Date: |
1 Jan 2023 | | Abstract: | The application of transformation optics to the development of intriguing
electromagnetic devices can produce weakly anisotropic or isotropic media with
the assistance of quasi-conformal and/or conformal mapping, as opposed to the
strongly anisotropic media produced by general mappings; however, it is
typically limited to two-dimensional applications. By addressing the conformal
mapping between two manifolds embedded in three-dimensional space, we
demonstrate that electromagnetic surface waves can be controlled without
introducing singularity and anisotropy into the device parameters. Using
fruitful surface conformal parameterization methods, a near-perfect conformal
mapping between smooth manifolds with arbitrary boundaries can be obtained.
Illustrations of cloaking and illusions, including surface Luneburg and Eaton
lenses and black holes for surface waves, are provided. Our work brings the
manipulation of surface waves at microwave and optical wavelengths one step
closer. | | Source: | arXiv, 2301.00352 | | Services: | Forum | Review | PDF | Favorites | |
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