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Updated: May 4, 2026
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Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots
Published on: November 1, 2013
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Quantum Dots on Flexible Nanohole Arrays Support Stable Nanolasing.
Shaobin Zheng1,2,3,4, Qinglin Ji1,2,3, Yungao Chen1,2,3
1State Key Laboratory of Materials for Integrated Circuits, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.
ACS Nano
|February 20, 2026
Summary
Researchers developed a flexible nanolaser using perovskite quantum dots and a PDMS nanohole array. This device maintains stable lasing performance under mechanical strain, enabling applications like facial recognition.
Area of Science:
- Optics and Photonics
- Materials Science
- Nanotechnology
Background:
- Nanostructure lattices are promising for compact light sources but lack emission stability under mechanical stress.
- Existing nanolasers face challenges in maintaining performance when deformed.
Purpose of the Study:
- To demonstrate a flexible nanolaser with robust lasing performance under mechanical deformation.
- To engineer a nanolaser structure that ensures stable emission characteristics during bending and stretching.
Main Methods:
- Fabrication using nanoimprint and quantum dot (QD) drop-casting processes.
- Utilizing guided-mode resonance (GMR) in a perovskite QD film integrated with a polydimethylsiloxane (PDMS) nanohole array.
- Engineering the PDMS nanohole array for stable effective period and resonance wavelength under strain.
Main Results:
- Achieved a flexible nanolaser with stable lasing at 532 nm and a low threshold (∼15 μJ/cm2).
- Demonstrated robust performance under up to 15% tensile strain and over 1000 stretching cycles at 5% strain.
- Enabled emission-direction steering (±50°), rotation-rate measurement, and beam-angle control.
Conclusions:
- The developed flexible nanolaser overcomes stability issues in nanostructure lattices under deformation.
- Potential applications include facial recognition, human-computer interactions, and embodied intelligence.
- The device offers a stable, flexible platform for advanced photonic applications.
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