Asahi Kasei Achieves 2 µm-Band Infrared Laser Breakthrough with PCSEL Technology
Event summary
- Asahi Kasei Microdevices (AKM) and Kyoto University achieved laser oscillation in a 2 µm-band infrared photonic crystal surface-emitting laser (PCSEL).
- The breakthrough enables miniaturization of next-generation sensing systems while maintaining high directionality and narrow spectral bandwidth.
- The 2 µm wavelength band is suited for high-sensitivity greenhouse gas detection, including CO2 and CH4.
- AKM plans to accelerate R&D focusing on manufacturability and advanced photonic crystal designs.
- Research results were presented at the Spring Meeting of the Japan Society of Applied Physics in March 2026.
The big picture
This breakthrough aligns with the growing demand for high-brightness, narrow-linewidth light sources in fields like biomolecule sensing and breath gas analysis. The ability to detect greenhouse gases with high precision positions AKM's technology at the intersection of environmental monitoring and advanced manufacturing. The collaboration with Kyoto University underscores the strategic importance of academic partnerships in driving technological innovation.
What we're watching
- Commercialization Pace
- The pace at which AKM can transition this technology from research to mass production will determine its market impact.
- Application Expansion
- How quickly the 2 µm-band PCSEL technology can be integrated into existing and new sensing applications, particularly in environmental monitoring.
- Competitive Positioning
- Whether AKM can maintain a competitive edge in the infrared laser market given the specialized nature of PCSEL technology.