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Curved anisotropic polaritons

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The curved surface has emerged as new research platform for understand-ing and manipulating novel electromagnetic behaviors in complex media.In this paper,we explore the anisotropic polaritons on the spherical surface based on Maxwell's fish-eye metric through stereographic projec-tion.Additionally,this phenomenon can be extended to spindle surface by conformal mapping.Our calculations and simulations demonstrate the elliptic and hyperbolic polaritons,excited by an electric dipole on the sphere,will self-focus or focus on the poles on the sphere affected by anisotropic permittivity.Furthermore,we reveal the optical singularity nature of the curved hyperbolic polaritons from the perspective of trans-formation optics by obtaining the equivalent optical refractive index profiles and the particle potential energy.Based on natural anisotropic materials and metamaterials,the curved polaritons have potential applica-tions in curved surface focusing and chaos regulation.This work not only bridges the transformation optics and anisotropic polaritons at curved surface,but also provides a new route to surface optical field manipula-tion.

anisotropic polaritonstransformation opticscurved surface

Tao Hou、Yixiao Ge、Shuwen Xue、Huanyang Chen

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Department of Physics and Institute of Electromagnetics and Acoustics,Xiamen University,Xiamen 361005,China

Jiujiang Research Institute of Xiamen University,Jiujiang 332000,China

National Natural Science Foundation of ChinaNational Key Research and Development Program of ChinaFundamental Research Funds for the Central UniversitiesJiangxi Provincial Natural Science Foundation

920501022020YFA0710100207202310220224ACB201005

2024

10.1007/s11467-023-1360-9

物理学前沿
高等教育出版社

物理学前沿

CSTPCD
影响因子：0.816
ISSN：2095-0462
年,卷(期)：2024.19(3)
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