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Updated: Apr 22, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
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Microelectromechanical Systems-Tunable Reflective Metalenses for Switchable Focusing between Two Arbitrary Phase

Zhihao Zhu1,2, Mingwei Tang1,3, Paul C V Thrane4

  • 1State Key Laboratory of Extreme Photonics and Instrumentation, Zhejiang Key Laboratory of Autonomous Optoelectronic Perception, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China.

ACS Nano
|April 21, 2026
PubMed
Summary

This study introduces a microelectromechanical systems (MEMS)-tunable metalens (ML) platform for dynamic wavefront shaping. This novel approach enables arbitrary, continuous 2π-phase modulation for two independent states, overcoming limitations of existing reconfigurable optics.

Keywords:
MEMSbilayer metasurfaceplasmonictunable metalensesvarifocalvortexwavefront control

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