Achromatic beam deflector with electrodynamic phased arrays

Jungkwuen An; Young Kim; Yunhee Kim; Hoon Song; Chunghwan Jung; Kanghee Won; Junsuk Rho; Hong-Seok Lee

doi:10.1038/s41377-025-01936-5

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Achromatic beam deflector with electrodynamic phased arrays

Original Articles

- Achromatic beam deflector with electrodynamic phased arrays
- Achromatic beam deflector with electrodynamic phased arrays
- Light: Science & Applications 2025年14卷第10期页码：2980-2990
- Affiliations：
  
  1.Visual Technology Team, Samsung Research, Seoul 06765, Republic of Korea
  2.Advanced Sensor Lab, Device Research Center, Samsung Advanced Institute of Technology, Suwon 16678, Republic of Korea
  3.Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
  4.Department of Information Display, Kyung Hee University, Seoul 02447, Republic of Korea
  5.Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
  6.Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
  7.POSCO-POSTECH-RIST Convergence Research Center for Flat Optics and Metaphotonics, Pohang 37673, Republic of Korea
  8.Major of Electrical Engineering, College of Engineering, Pukyong National University, Busan 48513, Republic of Korea
- Author bio：
  
  Kanghee Won (khwon@khu.ac.kr)
  Junsuk Rho (jsrho@postech.ac.kr)
  Hong-Seok Lee (lhs12100@pknu.ac.kr)
- Funds：
- DOI：10.1038/s41377-025-01936-5
  中图分类号：
- 收稿：2024-10-13，
  
  修回：2025-05-17，
  
  录用：2025-06-24，
  
  网络出版：2025-08-18，
  
  纸质出版：2025-10-31
- Accepted：
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Jungkwuen An, Young Kim, Yunhee Kim, 等. Achromatic beam deflector with electrodynamic phased arrays[J]. Light: Science & Applications, 2025,14(10):2980-2990.

An J. et al. Achromatic beam deflector with electrodynamic phased arrays. Light: Science & Applications, 14, 2980-2990 (2025).
Jungkwuen An, Young Kim, Yunhee Kim, 等. Achromatic beam deflector with electrodynamic phased arrays[J]. Light: Science & Applications, 2025,14(10):2980-2990. DOI： 10.1038/s41377-025-01936-5.

An J. et al. Achromatic beam deflector with electrodynamic phased arrays. Light: Science & Applications, 14, 2980-2990 (2025). DOI： 10.1038/s41377-025-01936-5.

摘要

Abstract

Since flat optics has the feature to implement a compact system

they are widely used in various applications to replace bulky refractive optics. However

they suffer from chromatic aberrations due to dispersion

limiting their effectiveness to a narrow wavelength range. Consequently

diffractive optics has been applied for dynamic beam steering within a specific wavelength region or for static steering across multiple wavelengths. This limitation has made it challenging to implement dynamic beam steering in full-color display applications. To address this issue

we developed a multi-wavelength-based optical architecture that mitigates chromatic aberrations. This system incorporates color-selective retarders

half-wave plates

polarization plates

and beam deflectors. We experimentally demonstrated an achromatic beam deflector using a dynamic phase array in transmission mode

achieving continuous tunable beam steering over multiple wavelengths at 460

520

and 638 nm.

关键词

Keywords

references

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