Using a self-developed optimization algorithm, we designed and fabricated Taiwan＇s first 2 cm thermal imaging metalens with a 60° field of view, aberration correction, and broadband achromatic performance (8-12 μm). This lightweight, 1-gram metalens is ideal for drones and aerospace, addressing reliance on imports and enhancing national security.

Achieving large-diameter, wide-field-of-view, and broadband achromatic performance in metalenses is challenging. In 2024, University of Washington and U.S. Air Force Research Laboratory researchers developed a 1 cm thermal imaging metalens with achromatic correction. Our metalens, with a 2 cm diameter, achieves a 60° wide field of view, is achromatic and aberration-free. The simple meta-atom structure is conducive to mass production, fabricated on an 8-inch silicon wafer.

The lightweight, compact metalens suits drone, satellites, and factory machine tools, detecting short circuits. It＇s also suitable for automotive use, detecting heat reflections. Mass production is cost-effective, with potential in defense. Customized development enhances competitiveness.