中国物理B ›› 2020, Vol. 29 ›› Issue (8): 84210-084210.doi: 10.1088/1674-1056/ab96a1

• SPECIAL TOPIC—Ultracold atom and its application in precision measurement • 上一篇    下一篇

Hyperbolic metamaterials for high-efficiency generation of circularly polarized Airy beams

Lin Chen(陈林), Huihui Li(李会会), Weiming Hao(郝玮鸣), Xiang Yin(殷祥), Jian Wang(王健)   

  1. Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
  • 收稿日期:2020-02-29 修回日期:2020-04-23 出版日期:2020-08-05 发布日期:2020-08-05
  • 通讯作者: Lin Chen E-mail:chen.lin@mail.hust.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11474116 and 11674118).

Hyperbolic metamaterials for high-efficiency generation of circularly polarized Airy beams

Lin Chen(陈林), Huihui Li(李会会), Weiming Hao(郝玮鸣), Xiang Yin(殷祥), Jian Wang(王健)   

  1. Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2020-02-29 Revised:2020-04-23 Online:2020-08-05 Published:2020-08-05
  • Contact: Lin Chen E-mail:chen.lin@mail.hust.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11474116 and 11674118).

摘要: Metasurfaces have exhibited considerable capability for generating Airy beams. However, the available plasmonic/dielectric metasurfaces Airy-beam generators have low transmission efficiency and/or poor quality of generated beam because they lack the amplitude modulation. Hyperbolic metamaterials (HMMs) have recently provided an alternative strategy for building high-performance meta-devices that are capable of flexibly modulating the phase, amplitude and polarization state of light. Here we reveal that both the propagation phase and the Pancharatnam-Berry phase can contribute to the local transmission phase of circularly polarized electromagnetic waves by using HMMs. This thus provides us with great freedom to design HMM units with different cross-sections to independently control the transmission phase and amplitude. Here, we design circularly polarized Airy-beam generators in the microwave and near-infrared domains, which require binary phase and polynary amplitude, and validate the good performance in the microwave experiment. Our work can facilate the generation of a complicated light field that highly requires independent and complete control of the transmission phase and amplitude under circularly polarized incidence.

关键词: hyperbolic metamaterials, Airy beam, phase and amplitude modulation

Abstract: Metasurfaces have exhibited considerable capability for generating Airy beams. However, the available plasmonic/dielectric metasurfaces Airy-beam generators have low transmission efficiency and/or poor quality of generated beam because they lack the amplitude modulation. Hyperbolic metamaterials (HMMs) have recently provided an alternative strategy for building high-performance meta-devices that are capable of flexibly modulating the phase, amplitude and polarization state of light. Here we reveal that both the propagation phase and the Pancharatnam-Berry phase can contribute to the local transmission phase of circularly polarized electromagnetic waves by using HMMs. This thus provides us with great freedom to design HMM units with different cross-sections to independently control the transmission phase and amplitude. Here, we design circularly polarized Airy-beam generators in the microwave and near-infrared domains, which require binary phase and polynary amplitude, and validate the good performance in the microwave experiment. Our work can facilate the generation of a complicated light field that highly requires independent and complete control of the transmission phase and amplitude under circularly polarized incidence.

Key words: hyperbolic metamaterials, Airy beam, phase and amplitude modulation

中图分类号:  (Birefringence)

  • 42.25.Lc
42.79.-e (Optical elements, devices, and systems) 42.30.Lr (Modulation and optical transfer functions) 78.67.Pt (Multilayers; superlattices; photonic structures; metamaterials)