Fano-Resonant Hybrid Metamaterial for Enhanced Nonlinear Tunability and Hysteresis Behavior

Abstract

Artificial resonant metamaterial with subwavelength localized filed is promising for advanced nonlinear photonic applications. In this article, we demonstrate enhanced nonlinear frequency-agile response and hysteresis tunability in a Fano-resonant hybrid metamaterial. A ceramic cuboid is electromagnetically coupled with metal cut-wire structure to excite the high-Q Fano-resonant mode in the dielectric/metal hybrid metamaterial. It is found that the significant nonlinear response of the ceramic cuboid can be employed for realization of tunable metamaterials by exciting its magnetic mode, and the trapped mode with an asymmetric Fano-like resonance is beneficial to achieve notable nonlinear modulation on the scattering spectrum. The nonlinear tunability of both the ceramic structure and the ceramic/metal hybrid metamaterial is promising to extend the operation band of metamaterials, providing possibility in practical applications with enhanced light-matter interactions.

Polarization‐Multiplexed Silicon Metasurfaces for Multi‐Channel Visible Light Modulation

“…Recently, plenty of functional metasurface devices have been reported, including metagratings, [5][6][7][8] high quality factor devices, [9,10] spontaneous emission control, [11][12][13] magnetic mirrors, [14] cloaking, [15][16][17][18][19][20] optical vortex beam generators, [21][22][23][24][25] and so on. [26][27][28][29][30][31][32][33][34][35][36][37][38][39] In order to achieve the desired functionality with high efficiency, the materials used to fabricate metasurfaces should not only strongly interact with light but also have low intrinsic losses. Metal-based plasmonic metasurfaces [40][41][42] and dielectric-based Mie metasurfaces [43][44][45] are the predominantly two class strategies for enhancing the light and matter interactions with resonant subwavelength structures.…”

“…Recently, plenty of functional metasurface devices have been reported, including metagratings, [ 5–8 ] high quality factor devices, [ 9,10 ] spontaneous emission control, [ 11–13 ] magnetic mirrors, [ 14 ] cloaking, [ 15–20 ] optical vortex beam generators, [ 21–25 ] and so on. [ 26–39 ]…”

High-efficiency modulation of broadband polarization conversion with a reconfigurable chiral metasurface

“…Dynamically tunable metamaterials can be obtained by introducing graphene, phase change materials ( e.g. , vanadium dioxide and GST) and a nonlinear mechanism 57–73 for active control of light e.g. its polarization states.…”

Coiling-Up Space Metasurface for High-Efficient and Wide-angle Acoustic Wavefront Steering

“…The recently appeared acoustic metasurfaces, as the two-dimensional (2D) version of metamaterials with subwavelength thicknesses, have shown outstanding capabilities in manipulating acoustic waves compared to natural materials (Li et al, 2013;Zhao et al, 2013;Ma et al, 2014;Xie et al, 2014;Xie et al, 2017;Assouar et al, 2018;Zhu et al, 2018;Chen et al, 2019;Long et al, 2020;Zhang et al, 2020). Metasurfaces originally have been introduced and progressed for manipulating electromagnetic waves (Yu et al, 2011;Yang et al, 2019;Guan et al, 2020a;Ding et al, 2020;Yuan et al, 2020;Fan et al, 2021) and then are expanded to steer the acoustic waves given that both of the them obey the generalized Snell's law. Basically, the uniqueness of metasurfaces rested with their ability of easily adjusting the phase and/or amplitude so as to fully control the wave fields.…”