Surface potential-adjusted surface states in 3D topological photonic crystals

Abstract Surface potential in a topological matter could unprecedentedly localize the waves. However, this surface potential is yet to be exploited in topological photonic systems. Here, we demonstrate that photonic surface states can be induced and controlled by the surface potential in a dielectri...

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Main Authors: Haedong Park, Sang Soon Oh, Seungwoo Lee
Format: Article
Language:English
Published: Nature Portfolio 2024-03-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-024-56894-6
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author Haedong Park
Sang Soon Oh
Seungwoo Lee
author_facet Haedong Park
Sang Soon Oh
Seungwoo Lee
author_sort Haedong Park
collection DOAJ
description Abstract Surface potential in a topological matter could unprecedentedly localize the waves. However, this surface potential is yet to be exploited in topological photonic systems. Here, we demonstrate that photonic surface states can be induced and controlled by the surface potential in a dielectric double gyroid (DG) photonic crystal. The basis translation in a unit cell enables tuning of the surface potential, which in turn regulates the degree of wave localization. The gradual modulation of DG photonic crystals enables the generation of a pseudomagnetic field. Overall, this study shows the interplay between surface potential and pseudomagnetic field regarding the surface states. The physical consequences outlined herein not only widen the scope of surface states in 3D photonic crystals but also highlight the importance of surface treatments in a photonic system.
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spelling doaj.art-9e0e6bde23fb40f4ba22a2e08271f86c2024-03-31T11:19:32ZengNature PortfolioScientific Reports2045-23222024-03-0114111210.1038/s41598-024-56894-6Surface potential-adjusted surface states in 3D topological photonic crystalsHaedong Park0Sang Soon Oh1Seungwoo Lee2KU-KIST Graduate School of Converging Science and Technology, Korea UniversitySchool of Physics and Astronomy, Cardiff UniversityKU-KIST Graduate School of Converging Science and Technology, Korea UniversityAbstract Surface potential in a topological matter could unprecedentedly localize the waves. However, this surface potential is yet to be exploited in topological photonic systems. Here, we demonstrate that photonic surface states can be induced and controlled by the surface potential in a dielectric double gyroid (DG) photonic crystal. The basis translation in a unit cell enables tuning of the surface potential, which in turn regulates the degree of wave localization. The gradual modulation of DG photonic crystals enables the generation of a pseudomagnetic field. Overall, this study shows the interplay between surface potential and pseudomagnetic field regarding the surface states. The physical consequences outlined herein not only widen the scope of surface states in 3D photonic crystals but also highlight the importance of surface treatments in a photonic system.https://doi.org/10.1038/s41598-024-56894-6
spellingShingle Haedong Park
Sang Soon Oh
Seungwoo Lee
Surface potential-adjusted surface states in 3D topological photonic crystals
Scientific Reports
title Surface potential-adjusted surface states in 3D topological photonic crystals
title_full Surface potential-adjusted surface states in 3D topological photonic crystals
title_fullStr Surface potential-adjusted surface states in 3D topological photonic crystals
title_full_unstemmed Surface potential-adjusted surface states in 3D topological photonic crystals
title_short Surface potential-adjusted surface states in 3D topological photonic crystals
title_sort surface potential adjusted surface states in 3d topological photonic crystals
url https://doi.org/10.1038/s41598-024-56894-6
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