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Topological-Distortion-Driven Amorphous Spherical Metal-Organic Frameworks for High-Quality Single-Mode Microlasers
Zhenhua Gao1, Baoyuan Xu1, Yuqing Fan2
1School of Materials Science & Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong Province, China.
Angewandte Chemie (International Ed. in English)
|December 14, 2020
Summary
Researchers developed spherical metal-organic framework (MOF) microcavities, overcoming scattering losses in MOF microlasers. These novel spherical MOFs enable high-performance single-mode lasing, advancing photonic device construction.
Area of Science:
- Materials Science
- Optics
- Nanotechnology
Background:
- Metal-organic frameworks (MOFs) offer a unique combination of inorganic stability and organic processability, making them promising for microlaser applications.
- Existing crystalline MOF microstructures suffer from scattering losses due to grain boundaries, hindering optimal lasing performance.
Purpose of the Study:
- To overcome scattering losses in MOF-based microlasers by designing novel microcavity structures.
- To achieve high-quality single-mode lasing oscillations in MOF microcavities.
Main Methods:
- Constructing spherical MOF microcavities by introducing flexible building blocks during synthesis.
- Inducing topological distortion in MOFs to create amorphous structures with smooth surfaces.
Main Results:
- Achieved ultra-smooth spherical MOF microcavities with excellent circular boundaries.
- Demonstrated a high Q factor of approximately 10^4, enabling sufficient optical feedback.
- Facilitated high-quality single-mode lasing oscillations.
Conclusions:
- Spherical MOF microcavities effectively suppress scattering losses, significantly improving microlaser performance.
- This approach provides a pathway for developing new flexible MOF-based photonic components.
- The developed MOF microcavities show potential for advanced laser applications.
