Spin-decoupled bifunctional metasurface for THz wavefront manipulation

Zhang, Ming; Dong, Peng; Zhang, Najiao; Zhang, Junyao; Wu, Yiwen; Liu, Nannan

doi:10.1117/12.2686185

Infrared, Millimeter-Wave, and Terahertz Technologies X 2023

DOI: 10.1117/12.2686185

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Spin-decoupled bifunctional metasurface for THz wavefront manipulation

Ming Zhang,

Peng Dong,

Najiao Zhang

et al.

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2024

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Design of terahertz free shape metasurface lens based on adjoint optimization

Wu,

Liu,

Zhang

2024

Nano-Optoelectronics and Micro/Nano-Photonics X

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Due to the unique optical control ability and nanoscale structural characteristics of metasurfaces, they can achieve precise control and customized design of light, showing obvious advantages in many practical applications. However, since the structural design and electromagnetic simulation of most metasurfaces need to be manually adjusted step by step and are highly dependent on experience, once the optimization target changes, the unit structure needs to be re-optimized, resulting in excessive design costs and time. In this paper, a shape topology optimization method based on adjointness is used to reverse design the shape of the metasurface structure, and a free shape continuous metasurface with a deflection angle of the 30 degree is proposed. Compared with the discrete metasurface used in traditional design methods, the free shape continuous metasurface optimized by topology has higher light transmittance. The free shape metasurface lens designed in this paper has the advantages of high transmission efficiency, fast design speed, and has potential application prospects in optical communications, micro-nano light field control and other fields.

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Design of terahertz free shape metasurface lens based on adjoint optimization

Wu,

Liu,

Zhang

2024

Nano-Optoelectronics and Micro/Nano-Photonics X

View full text Add to dashboard Cite

show abstract

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Spin-decoupled bifunctional metasurface for THz wavefront manipulation

Cited by 1 publication

References 35 publications

Design of terahertz free shape metasurface lens based on adjoint optimization

Design of terahertz free shape metasurface lens based on adjoint optimization

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