MEMS-integrated metasurfaces for dynamic linear polarizers

• DOI: 10.1364/optica.515524
• Publication Date: 2024-01-22T17:00:54Z
• Authors: Yadong Deng; Chao Meng; Paul C. V. Thrane; Sören im Sande; Sergey I. Bozhevo...; Fei Ding
• Keywords: Polarizer; Extinction ratio

Optical metasurfaces (OMSs), planar arrays of meticulously designed meta-atoms, are renowned for remarkable capabilities in manipulating the polarization state light at subwavelength scales. Nevertheless, most OMS-empowered optics remain static, featuring well-defined optical responses determined by their configurations set during fabrication. Here, we demonstrate a MEMS-OMS-based dynamic linear polarizer (DLP) with an electrically controlled extinction ratio, which is tunable fast and reversible fashion, combining anisotropic plasmonic OMS thin-film piezoelectric MEMS mirror. Capitalizing on MEMS-OMS DLP, further implement voltage-controlled grayscale imaging vector vortex beam generation under linearly circularly polarized excitations, respectively. Our DLP design could enable adaptive photonic systems advanced applications image encryption, displays, beyond.