Metasurfaces: All‐Dielectric Metasurfaces for Simultaneous Giant Circular Asymmetric Transmission and Wavefront Shaping Based on Asymmetric Photonic Spin–Orbit Interactions (Adv. Funct. Mater. 47/2017)

Abstract

Most essential biological nutrients possess intrinsic chirality. In article number https://doi.org/10.1002/adfm.201704295, Xiangang Luo and co‐workers report all‐dielectric metasurfaces that could replace the cascading conventional optical components used for the detection of chiral optical responses. The realization of simultaneous giant chiral response and arbitrary wavefront shaping with only one metasurface provides many new ideas for studying chiral and functional materials.

Omnidirectional Circularly Polarized Thermal Radiation Enabled by Chiral Metasurface

“…[25,[52][53][54][55] Meanwhile, its narrowband characteristics are also more prominent than some previous works. [56,57] The influence of the geometric parameters of the metasurface structure on CD spectra is analyzed in Figure 2c. It can be seen that the variation of geometric parameters leads to slight changes of the intensity of CD, and the resonance wavelength also shifts minorly.…”

Generation of High‐Purity Full Poincaré Beam Arrays via Metasurface Integrated Degenerate Cavity

“…[ 33–35 ] Furthermore, the application of the asymmetric photonic spin‐orbit interaction can present an efficient approach in intra‐cavity modulation. As J ( x , y ) is the Jones matrix of each nanopillar on the specific position, along with the arbitrarily defined and mutually independent spatial phase profiles φ 1 and φ 2 , [ 25,36 ] the Jones matrix can be solved in the following form: [ 37,38 ] $$$$\begin{equation}{{J}_{{\mathrm{FPBM}}}}(x,y) = \left. {\left[ { \def\eqcellsep{&}\begin{array}{@{}*{2}{c}@{}} {\frac{{\exp [i{{\varphi }_1}(x,y)] + \exp [i{{\varphi }_2}(x,y)]}}{2}}&{\frac{{i\exp [i{{\varphi }_2}(x,y)] - i\exp [i{{\varphi }_1}(x,y)]}}{2}}\\ {\frac{{i\exp [i{{\varphi }_2}(x,y)] - i\exp [i{{\varphi }_1}(x,y)]}}{2}}&{\frac{{ - \exp [i{{\varphi }_1}(x,y)] - \exp [i{{\varphi }_2}(x,y)]}}{2}} \end{array} } \right.}$$…”

Ultrathin Suspended Chiral Metasurfaces for Enantiodiscrimination

“…Furthermore, asymmetric transmission, defined as the difference between the forward and backward transmission, can be explored in layered metasurfaces stemming from an asymmetry introduced along the propagation direction. [ 48,61,62 ] Hence, we measured the transmission spectra of backward illumination for comparison, and the results of the lower CD are shown in Figure S6 (Supporting Information). The experimentally measured and numerically simulated transmission spectra are also in good agreement.…”