Taking inspiration from beautiful colors in nature,structural colors produced from nanostructured metasurfaces have shown great promise as a platform for bright,highly saturated,and high-resolution colors.Both plasmon...Taking inspiration from beautiful colors in nature,structural colors produced from nanostructured metasurfaces have shown great promise as a platform for bright,highly saturated,and high-resolution colors.Both plasmonic and dielectric materials have been employed to produce static colors that fulfil the required criteria for high-performance color printing,however,for practical applications in dynamic situations,a form of tunability is desirable.Combinations of the additive color palette of red,green,and blue enable the expression of further colors beyond the three primary colors,while the simultaneous intensity modulation allows access to the full color gamut.Here,we demonstrate an electrically tunable metasurface that can represent saturated red,green,and blue pixels that can be dynamically and continuously controlled between on and off states using liquid crystals.We use this to experimentally realize ultrahigh-resolution color printing,active multicolor cryptographic applications,and tunable pixels toward high-performance full-color reflective displays.展开更多
基金This work was supported by the Samsung Research Funding&Incubation Center for Future Technology grant(SRFC-T1901-05)funded by Samsung Electronicsthe POSCO-POSTECH-RIST Convergence Research Center program funded by POSCO+3 种基金the National Research Foundation(NRF)grants(NRF-2019R1A2C3003129,CAMM-2019M3A683030637,NRF-2019R1A5A8080290,NRF-2020K1A3A1A21024374,NRF-2021K2A9A2A15000174,NRF-2021K1A3A 1A17086079)funded by the Ministry of Science and ICT(MSIT)of the Korean governmentY-KK acknowledges the NRF grants(NRF-2021R1A4A1030944,NRF.2021R1A2C2095010)funded by the MSIT of the Korean governmentJK acknowledges the POSTECH Alchemist fellowshiplK acknowledges the NRF Sejong Science fellowship(NRF-2021R1C1C2004291)funded by the MSIT of the Korean government.
文摘Taking inspiration from beautiful colors in nature,structural colors produced from nanostructured metasurfaces have shown great promise as a platform for bright,highly saturated,and high-resolution colors.Both plasmonic and dielectric materials have been employed to produce static colors that fulfil the required criteria for high-performance color printing,however,for practical applications in dynamic situations,a form of tunability is desirable.Combinations of the additive color palette of red,green,and blue enable the expression of further colors beyond the three primary colors,while the simultaneous intensity modulation allows access to the full color gamut.Here,we demonstrate an electrically tunable metasurface that can represent saturated red,green,and blue pixels that can be dynamically and continuously controlled between on and off states using liquid crystals.We use this to experimentally realize ultrahigh-resolution color printing,active multicolor cryptographic applications,and tunable pixels toward high-performance full-color reflective displays.
