Optoelectronics Letters, Volume. 19, Issue 2, 77(2023)

Research on the design of metalens with achromatic and amplitude modulation

Yuanyuan XU, Yan GENG*, Yu LIANG, Furui TANG, Yujuan SUN, and Yawei and WANG
Author Affiliations
  • School of Physics and Electrical Engineering, Jiangsu University, Zhenjiang 212013, China
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    Metalenses are two-dimensional planar metamaterial lenses, which have the advantages of high efficiency and easy integration. However, most metalenses cannot modulate the light intensity, which limits their applications. To deal with it, taking advantage of flexible regulation of the beam amplitude and phase by the metalens, the geometric phase method is selected to design the dual-function metalens. It can effectively eliminate chromatic aberration in a visible light band from 535 nm to 600 nm and achieve amplitude modulation. After transmitting the metalens, the amplitudes of the beam respectively turn into 0.2 and 0.9. In this way, the amount of transmission of metalens in the preset band can be quantitatively controlled. According to the distribution characteristics of light diffraction intensity, the metalens designed can play a dual modulation role of achromatism and interference double-beam equilibrium in the paper, to meet the needs of miniaturization and integration of the optical system. The achromatic and amplitude-modulated metalens will have great application potential in optical holographic imaging and super-resolution focusing.

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    XU Yuanyuan, GENG Yan, LIANG Yu, TANG Furui, SUN Yujuan, and WANG Yawei. Research on the design of metalens with achromatic and amplitude modulation[J]. Optoelectronics Letters, 2023, 19(2): 77

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    Paper Information

    Category: Devices

    Received: Aug. 15, 2022

    Accepted: Sep. 24, 2022

    Published Online: Mar. 18, 2023

    The Author Email: Yan GENG (gengyan2302@163.com)

    DOI:10.1007/s11801-023-2144-8

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