量子电子学报 ›› 2026, Vol. 43 ›› Issue (5): 838-846.doi: 10.3969/j.issn.1007-5461.2026.05.015

• 微纳光学 • 上一篇    

基于反射式相位编码超表面的高分辨率横向位移测量研究

匡程辉 1,2, 臧昊峰 1,2*, 鲁拥华 1,2*, 王沛 1,2   

  1. 1 中国科学技术大学光学与光学工程系, 安徽 合肥 230026; 2 光电子科学与技术安徽省重点实验室, 安徽 合肥 230026
  • 收稿日期:2025-02-12 修回日期:2025-03-14 出版日期:2026-09-28 发布日期:2026-09-30
  • 通讯作者: E-mail: zanghf@ustc.edu.cn; yhlu@ustc.edu.cn E-mail:E-mail: zanghf@ustc.edu.cn; yhlu@ustc.edu.cn
  • 作者简介:匡程辉 ( 2001 - ), 江西吉安人, 研究生, 主要从事基于超表面的精密测量方面的研究。E-mail: zjkch@mail.ustc.edu.cn
  • 基金资助:
    安徽省科技攻坚计划 (202423k09020046), 国家重点研发计划 (2023YFF05501)

High⁃resolution lateral displacement measurement based on reflective phase⁃encoded metasurface

KUANG Chenghui 1,2, ZANG Haofeng 1,2*, LU Yonghua 1,2*, WANG Pei 1,2   

  1. 1 Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei 230026, China;
    2 Anhui Key Laboratory of Optoelectronic Science and Technology, Hefei 230026, China
  • Received:2025-02-12 Revised:2025-03-14 Published:2026-09-28 Online:2026-09-30

摘要: 紧凑型、大量程和高分辨率的横向位移测量系统在精密制造和相关基础研究中均至关重要, 然而, 研制同时 具备百皮米级分辨率和百微米级测量范围的易集成测量系统面临巨大挑战。本研究提出并实验验证了一种基于反 射式相位编码超表面的高分辨率、易集成的横向位移测量技术。该技术利用超表面的相位编码特性, 将横向位移映 射至反射光的偏振旋转角度, 依据马吕斯定律可通过功率计测得光的强度, 从而直接读取位移信息。基于此核心思 想, 设计并制备了510 μm × 510 μm 的反射式相位编码超表面, 实现了200 μm 量程、100 pm 分辨率的横向位移测量。 同时, 该装置所有组件均集成至目标平台的一端, 为紧凑型、大量程、高分辨率位移传感器的实际应用提供了可能。

关键词: 反射式相位编码超表面, 横向位移测量, 高分辨率

Abstract: Compact, large-range, and high-resolution lateral displacement measurement systems are
crucial for both precision manufacturing and related fundamental research. However, developing an easily
integrable measurement system that simultaneously achieves hundred-picometer-level resolution and a
hundred-micrometer-level measurement range presents a significant challenge. In this study, we propose
and experimentally validate a high-resolution, easily integrable lateral displacement measurement
technique based on reflective phase-encoded metasurface. This technique utilizes the phase-encoding
characteristics of the metasurface to map the lateral displacement onto the polarization rotation angle of
the reflected light. According to Malus's law, the intensity of the light can be measured by a power meter,
thereby directly reading out the displacement information. And based on this core idea, we designed and
fabricated a reflective phase-encoded metasurface with an area of 510 μm × 510 μm, enabling lateral
displacement measurement with a range of 200 μm and a resolution of 100 pm. Additionally, all
components of the device are integrated on one end of the target platform, providing a practical solution
for compact, large-range, high-resolution displacement sensors.

Key words: reflective phase-encoded metasurface, lateral displacement measurement, high-resolution

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