Related Experiment Video
Updated: Sep 13, 2025
08:06
Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications
Published on: June 2, 2017
14.2K
Laser writing of spin defects in polymers
Yue Qin1, Hao Guo1, Daixuan Wu2
1State Key Laboratory of Extreme Environment Optoelectronic Dynamic Testing Technology and Instrument, North University of China, Taiyuan 030051, China.
Science Advances
|August 1, 2025
Summary
Researchers developed a new laser technique to create quantum spin defects in polymers. This breakthrough enables wider applications in sensing and anticounterfeiting using low-cost materials.
Area of Science:
- Quantum Information Science
- Materials Science
- Nanotechnology
Background:
- Quantum spin defects are crucial for advanced technologies like quantum computing and sensing.
- Current fabrication methods are limited to specific crystal structures, hindering broader applications in materials like polymers.
Purpose of the Study:
- To develop a novel in situ laser-induced fabrication strategy for creating spin defects in general-purpose polymers.
- To overcome the limitations of existing methods for spin defect integration into amorphous materials.
Main Methods:
- Proposed a manipulation of main and side chains of polymers (MMSCP) strategy using laser-induced fabrication.
- Investigated the effects of 17 laser parameters across 8 different polymers.
- Characterized the fabricated silicon carbide spin defects, focusing on ODMR contrast and linewidth.
Main Results:
- Successfully fabricated silicon carbide spin defects in polymers via laser-induced material mismatches.
- Achieved consistent ODMR contrast above 0.15% and linewidth below 54 MHz.
- Demonstrated effective fabrication of spin defects in microfluidic devices, cardiac patches, and medicine bottles.
Conclusions:
- The MMSCP strategy enables efficient and low-damage fabrication of spin defects in polymers.
- This technique broadens the application scope of spin defects in sensing and anticounterfeiting.
- MMSCP offers a revolutionary approach for integrating spin defects into diverse manufactured products.
