All-optical tunable slow-light based on an analogue of electromagnetically induced transparency in a hybrid metamaterial

Cheng, Mengqi; Zhang, Yuebin; Zhang, Yao; Bao, Shiqian; Jin, Jianyong; Li, Mi; Li, Dongming; Liu, Yinggang; Xu, Yan

doi:10.1039/d1na00232e

Cited by 22 publications

(10 citation statements)

References 29 publications

(42 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The phenomenon of the slow light effect occurs when the group velocity (GV) of light in a vacuum is slower than the speed of light, which is due to dispersion. The calculation formula for GD can be expressed as eqn (2): 49 in which φ , ω , c , and t denote the transmission phase, angular frequency, speed of light in a vacuum, and the total thickness of the design. Fig.…”

Section: Design Process and Discussionmentioning

confidence: 99%

Broadband plasmon-induced transparency to an anapole mode induced absorption conversion Janus metastructure by a waveguide structure in the terahertz region

Zhao

Zhu

et al. 2023

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

show abstract

Section: Design Process and Discussionmentioning

confidence: 99%

Broadband plasmon-induced transparency to an anapole mode induced absorption conversion Janus metastructure by a waveguide structure in the terahertz region

Zhao

Zhu

et al. 2023

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

show abstract

“…Once it was switched from amorphous ( a -GST) to crystalline ( c -GST) via an annealing process at 145 °C, the ED resonance was then switched to an anapole state due to the dramatic change of optical contrast. In addition, EIT resonance has been demonstrated on plasmonic nanostructures, , dielectric nanoantennas, , hybrid plasmonic–dielectric resonators, and 2D material-based ( e.g ., graphene) metasurface. − The right panel of Figure d schematically shows the design of a graphene metasurface, through which tunable EIT resonance was achieved by electrically controlling the effective Fermi energy levels . The illumination was the y -polarized terahertz waves.…”

Section: Physics and Design Methodologiesmentioning

confidence: 99%

Recent Advances in Tunable Metasurfaces: Materials, Design, and Applications

et al. 2022

View full text Add to dashboard Cite

Metasurfaces, a two-dimensional (2D) form of metamaterials constituted by planar meta-atoms, exhibit exotic abilities to tailor electromagnetic (EM) waves freely. Over the past decade, tremendous efforts have been made to develop various active materials and incorporate them into functional devices for practical applications, pushing the research of tunable metasurfaces to the forefront of nanophotonics. Those active materials include phase change materials (PCMs), semiconductors, transparent conducting oxides (TCOs), ferroelectrics, liquid crystals (LCs), atomically thin material, etc., and enable intriguing performances such as fast switching speed, large modulation depth, ultracompactness, and significant contrast of optical properties under external stimuli. Integration of such materials offers substantial tunability to the conventional passive nanophotonic platforms. Tunable metasurfaces with multifunctionalities triggered by various external stimuli bring in rich degrees of freedom in terms of material choices and device designs to dynamically manipulate and control EM waves on demand. This field has recently flourished with the burgeoning development of physics and design methodologies, particularly those assisted by the emerging machine learning (ML) algorithms. This review outlines recent advances in tunable metasurfaces in terms of the active materials and tuning mechanisms, design methodologies, and practical applications. We conclude this review paper by providing future perspectives in this vibrant and fast-growing research field.

show abstract

“…The EIT-like spectrum features are utilized to accomplish the stopband filter. Ma et al [31] proposed and analyzed the characterization of a EIT-like metamaterial in slow light technology. The surface structure of the metamaterial units comprises a ring resonator and a rectangular bar.…”

Section: Introductionmentioning

confidence: 99%

A high Q-factor metamaterial sensor based on electromagnetically induced transparency-like

Shen,

Zhang,

Zhang

2024

Mater. Res. Express

View full text Add to dashboard Cite

This paper proposes the electromagnetically induced transparency-like (EIT-like) metamaterial with a high-quality factor (143.54), which consists of a square ring resonator (SRR) and a cross-shaped resonator (CR). The designed metamaterial generates a sharp transparency peak at 15.79 GHz. The electric field distributions reveal that appearance of the transparency window is caused by the coupling between bright mode and dark mode. Meanwhile, analysis of the surface current distributions verifies that the EIT-like effect is induced via the destructive interference of the electric dipoles . In addition, the metamaterial is equated to a circuit model, which provides a better fit to the simulated transmission spectrum. These theories fully explain the generation of the EIT-like phenomenon. Furthermore, the EIT-like metamaterial is able to detect the dielectric constant of the target analyte (glucose solution), and the sensing performance is calculated. The results demonstrate that the sensitivity (S) is 4.80 GHz/RIU and the figure of merit (FOM) reaches to 43.71. The proposed EIT-like metamaterial shows prominent sensing abilities, consequently it has potential applications in environmental monitoring, biological and chemical measurements.

show abstract

All-optical tunable slow-light based on an analogue of electromagnetically induced transparency in a hybrid metamaterial

Abstract: We demonstrate and analyze the use of metamaterials with analogue of electromagnetically induced transparency (EIT) on slow light technology. For the most metamaterials, EIT-like effects suffer from the intrinsic Ohmic...

Cited by 22 publications

References 29 publications

Broadband plasmon-induced transparency to an anapole mode induced absorption conversion Janus metastructure by a waveguide structure in the terahertz region

Broadband plasmon-induced transparency to an anapole mode induced absorption conversion Janus metastructure by a waveguide structure in the terahertz region

Recent Advances in Tunable Metasurfaces: Materials, Design, and Applications

A high Q-factor metamaterial sensor based on electromagnetically induced transparency-like

Contact Info

Product

Resources

About