Ultrafast nonlocal collective dynamics of Kane plasmon-polaritons in a narrow-gap semiconductor
dc.bibliographicCitation.firstPage | eaau9956 | eng |
dc.bibliographicCitation.issue | 8 | eng |
dc.bibliographicCitation.journalTitle | Science Advances | eng |
dc.bibliographicCitation.volume | 5 | eng |
dc.contributor.author | Charnukha, A. | |
dc.contributor.author | Sternbach, A. | |
dc.contributor.author | Stinson, H.T. | |
dc.contributor.author | Schlereth, R. | |
dc.contributor.author | Brüne, C. | |
dc.contributor.author | Molenkamp, L.W. | |
dc.contributor.author | Basov, D.N. | |
dc.date.accessioned | 2020-07-18T06:12:42Z | |
dc.date.available | 2020-07-18T06:12:42Z | |
dc.date.issued | 2019 | |
dc.description.abstract | The observation of ultrarelativistic fermions in condensed-matter systems has uncovered a cornucopia of novel phenomenology as well as a potential for effective ultrafast light engineering of new states of matter. While the nonequilibrium properties of two- and three-dimensional (2D and 3D) hexagonal crystals have been studied extensively, our understanding of the photoinduced dynamics in 3D single-valley ultrarelativistic materials is, unexpectedly, lacking. Here, we use ultrafast scanning near-field optical spectroscopy to access and control nonequilibrium large-momentum plasmon-polaritons in thin films of a prototypical narrow-bandgap semiconductor Hg0.81Cd0.19Te. We demonstrate that these collective excitations exhibit distinctly nonclassical scaling with electron density characteristic of the ultrarelativistic Kane regime and experience ultrafast initial relaxation followed by a long-lived highly coherent state. Our observation and ultrafast control of Kane plasmon-polaritons in a semiconducting material using light sources in the standard telecommunications fiber-optics window open a new avenue toward high-bandwidth coherent information processing in next-generation plasmonic circuits. | eng |
dc.description.fonds | Leibniz_Fonds | |
dc.description.version | publishedVersion | eng |
dc.identifier.uri | https://doi.org/10.34657/3643 | |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/5014 | |
dc.language.iso | eng | eng |
dc.publisher | Washington : American Association for the Advancement of Science (A A A S) | eng |
dc.relation.doi | https://doi.org/10.1126/sciadv.aau9956 | |
dc.relation.issn | 2375-2548 | |
dc.rights.license | CC BY-NC 4.0 Unported | eng |
dc.rights.uri | https://creativecommons.org/licenses/by-nc/4.0/ | eng |
dc.subject.ddc | 530 | eng |
dc.subject.other | Access control | eng |
dc.subject.other | Light | eng |
dc.subject.other | Light sources | eng |
dc.subject.other | Phonons | eng |
dc.subject.other | Photons | eng |
dc.subject.other | Plasmonics | eng |
dc.subject.other | Collective dynamics | eng |
dc.subject.other | Collective excitations | eng |
dc.subject.other | Condensed matter system | eng |
dc.subject.other | Narrow-gap semiconductors | eng |
dc.subject.other | Non-equilibrium properties | eng |
dc.subject.other | Photoinduced dynamics | eng |
dc.subject.other | Scanning near field | eng |
dc.subject.other | Semiconducting materials | eng |
dc.subject.other | Narrow band gap semiconductors | eng |
dc.title | Ultrafast nonlocal collective dynamics of Kane plasmon-polaritons in a narrow-gap semiconductor | eng |
dc.type | Article | eng |
dc.type | Text | eng |
tib.accessRights | openAccess | eng |
wgl.contributor | IFWD | eng |
wgl.subject | Physik | eng |
wgl.type | Zeitschriftenartikel | eng |
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