Tunable Stealth Metasurface via Dual Geometric Phase Modulation (Advanced Optical Materials 7/2024)

Tunable Stealth Metasurface In article number 2301898, Lei-min Deng and co-workers propose a novel design method for low-reflection metasurface by integrating germanium telluride (GeTe) film. Through the reversible phase transition of GeTe film and polarization conversion performance of coding units, the metasurface can exhibit efficient stealth characteristics in different frequency bands. The phase characteristics of units and the electromagnetic scattering function of the arrays are analyzed in detail. This study provides a good candidate for tunable stealth materials.