Observation of Acoustic Valley Vortex States and Valley-Chirality Locked Beam Splitting

dc.contributor.ORCID0000-0003-4623-4200 (Zhang, F)en_US
dc.contributor.authorYe, Lipingen_US
dc.contributor.authorQiu, Chunyinen_US
dc.contributor.authorLu, Jiuyangen_US
dc.contributor.authorWen, Xinhuaen_US
dc.contributor.authorShen, Yuanyuanen_US
dc.contributor.authorKe, Manzhuen_US
dc.contributor.authorZhang, Fanen_US
dc.contributor.authorLiu, Zhengyouen_US
dc.contributor.utdAuthorZhang, Fanen_US
dc.date.accessioned2018-09-24T15:42:55Z
dc.date.available2018-09-24T15:42:55Z
dc.date.created2017-05-23
dc.date.issued2017-05-23en_US
dc.description.abstractWe report an experimental observation of the classical version of valley polarized states in a two-dimensional hexagonal sonic crystal. The acoustic valley states, which carry specific linear momenta and orbital angular momenta, were selectively excited by external Gaussian beams and conveniently confirmed by the pressure distribution outside the crystal, according to the criterion of momentum conservation. The vortex nature of such intriguing bulk crystal states was directly characterized by scanning the phase profile inside the crystal. In addition, we observed a peculiar beam-splitting phenomenon, in which the separated beams are constructed by different valleys and locked to the opposite vortex chirality. The exceptional sound transport, encoded with valley-chirality locked information, may serve as the basis of designing conceptually interesting acoustic devices with unconventional functions.en_US
dc.description.departmentSchool of Natural Sciences and Mathematicsen_US
dc.description.sponsorshipNational Basic Research Program of China (Grant No. 2015CB755500); National Natural Science Foundation of China (Grants No. 11674250, No. 11374233, No. 11534013, and No. 11547310).en_US
dc.identifier.bibliographicCitationYe, Liping, Chunyin Qiu, Jiuyang Lu, Xinhua Wen, et al. 2017. "Observation of acoustic valley vortex states and valley-chirality locked beam splitting." Physical Review B 95(17), doi:10.1103/PhysRevB.95.174106en_US
dc.identifier.issn2469-9950en_US
dc.identifier.issue17en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/6128
dc.identifier.volume95en_US
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevB.95.174106
dc.rights©2017 American Physical Society. All Rights Reserved.en_US
dc.sourcePhysical Review B
dc.subjectChiralityen_US
dc.subjectGaussian beamsen_US
dc.subjectCrystalsen_US
dc.titleObservation of Acoustic Valley Vortex States and Valley-Chirality Locked Beam Splittingen_US
dc.type.genrearticleen_US

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
NSM-4174-8294.70.pdf
Size:
5.56 MB
Format:
Adobe Portable Document Format
Description:
Article

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
American Physical Society.pdf
Size:
62.1 KB
Format:
Adobe Portable Document Format
Description:

Collections