Chongfan Technology
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22
2026
-
09
Wafer-Level Conformal Metasurface Optical Devices
Author:
The teams of Tian Gu and Zhaoyi Li at MIT, along with Young Min Song at KAIST, have demonstrated a scalable manufacturing strategy for curved, conformal metasurface optical devices based on thermoforming. Thermoforming is the industry-standard process for producing thermoplastic components. Their approach enables wafer-scale fabrication of highly curved metasurfaces with millimeter‑scale radii of curvature and micron‑level alignment accuracy. The authors developed a predictive thermo‑rheological model that accurately captures and compensates for the large deformations arising during thermoforming, thereby preserving the intended optical response and achieving diffraction‑limited performance. As demonstrations, they realized freestanding curved metalenses, conformal refractive–metasurface hybrid optical elements, and an artificial compound eye featuring a wide field of view, low aberrations, and uniform imaging performance. These results indicate that thermoforming represents a scalable manufacturing platform for next‑generation conformal photonic systems.
The research findings were published in Nature Communications on September 18, 2026, under the title “Wafer-scale conformal metasurface optics.”
Figure 1: Fabrication and Assembly of Conformal Metasurfaces
Figure 2: Optomechanical behavior of thermally formed curved metasurfaces
Figure 3: Experimental characterization of a freestanding curved metasurface lens.
Figure 4: Experimental demonstration of a hybrid refractive–metasurface optical device.
Figure 5: Imaging demonstration of a conformal metasurface compound eye.
Source: Optics World
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