Abstract
A novel metal/dielectric hybrid grating structure incorporating ultrathin plasma metals and intercross-cascaded dielectric gratings is proposed, characterized by owning the capacities of freely design of resonance and flexibly controls of filtering and polarization, for TE- and TM-polarized lights. Its distinctive resonant behaviors in reflection and transmission and controllable trimming ability in coloration and spectrum are systematically studied as well as origins of the resonances. Several specific grating structures are designed and optimized for color security and transparent display, and their characteristics of peak-splitting, resonance, filtering and polarization for coloration also discussed. By virtue of the structure, respectively manipulation and control for resonant spectra including locations of peak-valley, line-shapes and band-widths for TE- and TM-lights can be realized as well as simultaneously combined modulation for both polarizations. Better prospect of application exists in various fields for the structure including color decoration, optical and color security, transparent display and color imaging, etc.
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