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Related Experiment Video

Updated: Jun 15, 2025

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

Far-Field Phase-Shifting Structured Light Illumination Enabled by Polarization Multiplexing Metasurface for

Qianwei Zhou¹, Cheng Yang², Peicheng Lin¹

¹National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.

|August 26, 2024

Summary

We developed a novel metasurface for phase-shifting structured light, enhancing microscopic imaging. This innovation bypasses mechanical parts, improving accuracy and enabling super-diffraction-limit imaging for advanced applications.

Keywords:

metasurface polarization multiplexing structured light illumination super-resolution imaging

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Last Updated: Jun 15, 2025

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

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Published on: January 28, 2019

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Area of Science:

Optics and Photonics
Microscopy
Nanotechnology

Background:

Phase-shifting structured light illumination is crucial for advanced imaging.
Current methods using mechanical stages or spatial light modulators face limitations in stability, accuracy, and integration.

Purpose of the Study:

To propose and demonstrate a new method for generating phase-shifting structured light using a polarization multiplexing metasurface.
To overcome the limitations of conventional phase-shifting techniques.

Main Methods:

Fabrication of a polarization multiplexing metasurface.
Utilizing polarization control to generate a three-step displacement of structured light in the far-field.
Experimental demonstration of microscopic imaging with metasurface-generated structured light.

Main Results:

Successfully generated far-field phase-shifting structured light without mechanical components.
Achieved microscopic imaging with high-frequency information extraction.
Demonstrated super-diffraction-limit imaging capabilities.

Conclusions:

The proposed metasurface platform provides a compact and stable solution for phase-shifting imaging.
This technology has significant potential for quantitative detection and machine vision.
Offers a robust alternative to traditional phase-shifting methods.