Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/145165
Full metadata record
DC FieldValueLanguage
dc.contributor.authorYang, Yihaoen_US
dc.contributor.authorGao, Zhenen_US
dc.contributor.authorFeng, Xiaolongen_US
dc.contributor.authorHuang, Yue-Xinen_US
dc.contributor.authorZhou, Peihengen_US
dc.contributor.authorYang, Shengyuan A.en_US
dc.contributor.authorChong, Yidongen_US
dc.contributor.authorZhang, Baileen_US
dc.date.accessioned2020-12-14T08:33:24Z-
dc.date.available2020-12-14T08:33:24Z-
dc.date.issued2020-
dc.identifier.citationYang, Y., Gao, Z., Feng, X., Huang, Y.-X., Zhou, P., Yang, S. A., . . . Zhang, B. (2020). Ideal unconventional Weyl point in a chiral photonic metamaterial. Physical Review Letters, 125(14), 143001-. doi:10.1103/PhysRevLett.125.143001en_US
dc.identifier.issn0031-9007en_US
dc.identifier.urihttps://hdl.handle.net/10356/145165-
dc.description.abstractUnconventional Weyl points (WPs), carrying topological charge 2 or higher, possess interesting properties different from ordinary charge-1 WPs, including multiple Fermi arcs that stretch over a large portion of the Brillouin zone. Thus far, such WPs have been observed in chiral materials and acoustic metamaterials, but there has been no clean demonstration in photonics in which the unconventional photonic WPs are separated from trivial bands. We experimentally realize an ideal symmetry-protected photonic charge-2 WP in a three-dimensional topological chiral microwave metamaterial. We use field mapping to directly observe the projected bulk dispersion, as well as the two long surface arcs that form a noncontractible loop wrapping around the surface Brillouin zone. The surface states span a record-wide frequency window of around 22.7% relative bandwidth. We demonstrate that the surface states exhibit a novel topological self-collimation property and are robust against disorder. This work provides an ideal photonic platform for exploring fundamental physics and applications of unconventional WPs.en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.language.isoenen_US
dc.relationMOE2016-T3-1-006en_US
dc.relationMOE2018-T2-1-022en_US
dc.relationMOE2019-T2-1-001en_US
dc.relation.ispartofPhysical Review Lettersen_US
dc.rights© 2020 American Physical Society. All rights reserved. This paper was published in Physical Review Letters and is made available with permission of American Physical Society.en_US
dc.subjectScience::Physicsen_US
dc.titleIdeal unconventional Weyl point in a chiral photonic metamaterialen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.contributor.researchCentre for Disruptive Photonic Technologies (CDPT)en_US
dc.contributor.researchThe Photonics Instituteen_US
dc.identifier.doi10.1103/PhysRevLett.125.143001-
dc.description.versionPublished versionen_US
dc.identifier.pmid33064518-
dc.identifier.issue14en_US
dc.identifier.volume125en_US
dc.subject.keywordsWeyl Pointen_US
dc.subject.keywordsMetamaterialen_US
dc.description.acknowledgementThis work was supported by the Singapore Ministry of Education under Grants No. MOE2016-T3-1-006, No. MOE2018-T2-1-022 (S), and No. MOE2019-T2-1-001.en_US
item.fulltextWith Fulltext-
item.grantfulltextopen-
Appears in Collections:SPMS Journal Articles
Files in This Item:
File Description SizeFormat 
Ideal unconventional Weyl point in a chiral photonic metamaterial.pdf1.32 MBAdobe PDFView/Open

PublonsTM
Citations 50

1
Updated on Mar 8, 2021

Page view(s)

182
Updated on May 21, 2022

Download(s) 50

55
Updated on May 21, 2022

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.