Dynamically adjustable high-Q quasi-bound state in the continuum based on Si gratings and graphene hybrid system

Optics & Laser Technology, Journal Year: 2024, Volume and Issue: 177, P. 111106 - 111106

Published: May 8, 2024

Language: Английский

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Near-unity asymmetric transmission of linearly polarized light with high Q-factor based on the coherent coupling of dual resonances in bilayer dielectric chiral metasurfaces

Optics & Laser Technology, Journal Year: 2024, Volume and Issue: 176, P. 110934 - 110934

Published: April 1, 2024

Language: Английский

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Observation of broadband and strong optical chirality based on planar all-dielectric chiral metasurface

Optics & Laser Technology, Journal Year: 2025, Volume and Issue: 184, P. 112423 - 112423

Published: Jan. 8, 2025

Language: Английский

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Dual quasi-bound state in the continuums and their enhanced Goos-Hänchen shifts based on the waveguide grating system

Optics & Laser Technology, Journal Year: 2025, Volume and Issue: 187, P. 112817 - 112817

Published: March 21, 2025

Language: Английский

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Influence of slab interfaces and modulation regime on isolation ratio in graphene space-time crystal slabs: towards high-performance isolation

Optics Communications, Journal Year: 2025, Volume and Issue: unknown, P. 131957 - 131957

Published: May 1, 2025

Language: Английский

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Conversion and Active Control between BIC and Absorber in Terahertz Metasurface

Photonics, Journal Year: 2024, Volume and Issue: 11(5), P. 437 - 437

Published: May 8, 2024

A multifunctional switchable metamaterial device based on graphene, a gold layer, polyimide, vanadiµm dioxide (VO2), and the sapphire substrate is designed in this paper. The top layer consists of wire, two split-ring resonators with same parameters. By adjusting Fermi level regulation BIC quasi-BIC realized, conversion between absorber realized by conductivity VO2. When converted into wave-absorbing single-band absorption characteristics, graphene at time 0.001 eV, peak 0.820 THz higher than 99.5%, when regulated 1 0.667 also 99.5%. frequency 0.640 it converts to quasi-BIC. To best our knowledge, first that have been achieved using these phase change materials. Moreover, parameters structure, working efficiency can be dynamically adjusted. electric field distribution surface current metamaterials are further studied, physical mechanism effective discussed. These results show proposed paper many advantages, such as terahertz absorption, BIC, active control, great significance for developing devices.

Language: Английский

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High quality factor and unity circular dichroism enabled by dielectric-Weyl semimetal-dielectric stack

Micro and Nanostructures, Journal Year: 2024, Volume and Issue: 193, P. 207916 - 207916

Published: June 21, 2024

Language: Английский

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Thermally tunable broadband circular dichroism with Weyl semimetal/vanadium dioxide planar structure

Optics Communications, Journal Year: 2024, Volume and Issue: 569, P. 130786 - 130786

Published: June 17, 2024

Language: Английский

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Efficient frequency conversion in dielectric metasurfaces supporting both surface lattice resonances and quasi-bound states in the continuum

Optics & Laser Technology, Journal Year: 2024, Volume and Issue: 180, P. 111545 - 111545

Published: Aug. 3, 2024

Language: Английский

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Perfect asymmetric transmission for linear polarization in background reflection-free bilayer dielectric metasurfaces

Optik, Journal Year: 2024, Volume and Issue: unknown, P. 171997 - 171997

Published: Aug. 1, 2024

Language: Английский

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