Polarization-Independent Silicon Metadevices for Efficient Optical Wavefront Control
Chong, Katie; Staude, Isabelle; James, Anthony; Dominguez, Jason; Liu, Sheng; Campione, Salvatore; Subramania, Ganapathi S.; Luk, Ting Shan; Decker, Manuel; Neshev, Dragomir; Brener, Igal; Kivshar, Yuri
We experimentally demonstrate a functional silicon metadevice at telecom wavelengths that can efficiently control the wavefront of optical beams by imprinting a spatially varying transmittance phase independent of the polarization of the incident beam. Near-unity transmittance efficiency and close to 0-2 phase coverage are enabled by utilizing the localized electric and magnetic Mie-type resonances of low-loss silicon nanoparticles tailored to behave as electromagnetically dual-symmetric...[Show more]
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