Broadband electromagnetically induced transparency-like manipulation of graphene–black phosphorus hybrid metasurface

Abstract

Plasmonics of two-dimensional materials provides a platform for enhancing light-matter interactions and offers a variety of novel applications in the terahertz range. In this work, we theoretically and numerically investigate the broadband tunable electromagnetically induced transparency-like (EIT)-like effect based on graphene-black phosphorus (G-BP) metasurface. The designed structural unit consists of a circular G-BP disk placed between two parallel G-BP strips, both of which operate in bright mode. It can achieve a broadband EIT-like effect that performs beyond individual graphene and BP films, where the underlying physical mechanism is the near-field coupling of resonator elements and the coupling of two bright-bright modes. In addition, we can flexibly adjust the transparency window of the EIT-like effect by changing the geometric parameters, polarization angle, and Fermi energy level of G-BP. The finite-difference time-domain simulation results agree well with the results of the theoretical analysis based on the coupled Lorentz oscillator model. Moreover, the proposed structure exhibits excellent dispersion accompanied with a group index of ∼60, which provides theoretical guidance for slow-light optical devices.

Recent advances in stable arsenic–phosphorus: preparation, properties, and application

“…Phosphorus forms different polymorphs depending on the position of the P-atoms. Nine polymorphs of phosphorus have been reported, of which the α (BP) [29,30], β (blue phosphorus) [31], and θ (violet phosphorus) [32,33] phases are thermally stable, as shown in figures 1(a)-(c) [27]. Similar to phosphorus, Xie et al reported five arsenic phosphorus phases, of which those that proved to be thermally stable (figure(d)) were α (black arsenic phosphorus) and β (blue arsenic phosphorus), as shown in figures 1(e) and (f) [28].…”

Tunable plasmon-induced transparency in anisotropic graphene-black phosphorus photonic device for high-performance sensors and switchers

“…Chen et al proposed a hybrid bilayer G-BP structure to obtain multi-PIT effects [40]. Xu et al designed a G-BP to achieve a broadband tunable PIT effect [41]. Rafiee E and Negahdari R introduced a G-BP absorber using graphene and BP nano-spheres, which demonstrated the sensing capabilities based on the PIT effect [42].…”

Dielectric‐Based Electromagnetically Induced Transparency Metamaterial in the Microwave Band

“…Utilizing logical structural design and material selection, DOI: 10.1002/andp. 202300192 scholars are now able to achieve effective transmission of the EIT in the microwave, [7][8][9] infrared, terahertz, [10,11] and other frequency bands under conventional experimental conditions, and the related optical instrumentation manufacturing technology is gradually maturing.…”