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Diamond Metasurface-Based Optical Tweezers With Enhanced Robustness.

Jing-Yuan Zhu1, Ke-Xue Li2, Pei-Nan Ni1

  • 1Henan Key Laboratory of Diamond Materials and Devices, Key Laboratory of Materials Physics, Ministry of Education, School of Physics, Zhengzhou University, Zhengzhou, China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|February 4, 2026
PubMed
Summary
This summary is machine-generated.

Diamond metasurfaces overcome thermal issues in optical tweezers, enabling stable manipulation of microparticles for advanced lab-on-a-chip devices. This breakthrough advances miniaturized optomechanical systems for photonics.

Keywords:
diamondlab‐on‐a‐chipmetasurfacesoptical tweezersthermal robustness

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Area of Science:

  • Optics and Photonics
  • Materials Science
  • Nanotechnology

Background:

  • Optical tweezers are vital for manipulating micro/nanoparticles but face miniaturization challenges.
  • Metasurface optical tweezers offer compactness but are limited by laser-induced thermal effects.

Purpose of the Study:

  • To overcome thermal limitations in metasurface optical tweezers.
  • To develop a robust platform for high-power, miniaturized optomechanical systems.

Main Methods:

  • Utilized diamond metasurfaces due to their high thermal conductivity and optical damage threshold.
  • Experimentally demonstrated particle manipulation using diamond metasurface optical tweezers.

Main Results:

  • Successfully resolved critical thermal limitations of conventional metasurface optical tweezers.
  • Achieved versatile particle manipulations: 2D trapping, translocation, and rotation.
  • Ensured structural integrity under high-power illumination.

Conclusions:

  • Diamond metasurfaces provide a stable and durable platform for optical tweezers.
  • This work enables scalable integration of miniaturized optomechanical systems into demanding photonic applications.