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Article: Nonlinear Terahertz Generation: Chiral and Achiral Meta-Atom Coupling

TitleNonlinear Terahertz Generation: Chiral and Achiral Meta-Atom Coupling
Authors
Keywordsamplitude tuning
broadband terahertz generation
coupling
nonlinear circular dichroism
nonlinear metasurfaces
Issue Date2-Apr-2023
PublisherWiley
Citation
Advanced Functional Materials, 2023, v. 33, n. 29, p. 1-11 How to Cite?
AbstractGeneration and manipulation of terahertz (THz) waves are of vital importance for advancing THz technology. Nonlinear metasurfaces allow effective integration of both processes into a single compact device. However, such existing THz devices commonly rely on utilizing a single meta-atom, which has fixed THz generation properties and thus limits the range of achievable functionalities. Here, it is demonstrate how coupling between different meta-atoms within the unit-cell can be used as a degree of freedom for controlling nonlinear THz generation, where achiral coupling provides full control over the amplitude of the generated THz field, while chiral coupling makes the THz generation sensitive to the handedness of the pump polarization. In particular, chiral coupling allows the realization of multiplexed pump-handedness-selective nonlinear metasurfaces, which is illustrated experimentally by selectively generating THz beams with different orbital angular momentum with a single nonlinear metasurface. This approach provides opportunities for developing various integrated nonlinear THz devices.
Persistent Identifierhttp://hdl.handle.net/10722/330955
ISSN
2023 Impact Factor: 18.5
2023 SCImago Journal Rankings: 5.496
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, QW-
dc.contributor.authorZhang, XQ-
dc.contributor.authorXu, Q-
dc.contributor.authorFeng, X-
dc.contributor.authorLu, YC-
dc.contributor.authorNiu, L-
dc.contributor.authorChen, XY-
dc.contributor.authorPlum, E-
dc.contributor.authorGu, JQ-
dc.contributor.authorYang, QL-
dc.contributor.authorFang, M-
dc.contributor.authorHuang, ZX-
dc.contributor.authorZhang, S-
dc.contributor.authorHan, JG-
dc.contributor.authorZhang, WL-
dc.date.accessioned2023-09-21T06:51:28Z-
dc.date.available2023-09-21T06:51:28Z-
dc.date.issued2023-04-02-
dc.identifier.citationAdvanced Functional Materials, 2023, v. 33, n. 29, p. 1-11-
dc.identifier.issn1616-301X-
dc.identifier.urihttp://hdl.handle.net/10722/330955-
dc.description.abstractGeneration and manipulation of terahertz (THz) waves are of vital importance for advancing THz technology. Nonlinear metasurfaces allow effective integration of both processes into a single compact device. However, such existing THz devices commonly rely on utilizing a single meta-atom, which has fixed THz generation properties and thus limits the range of achievable functionalities. Here, it is demonstrate how coupling between different meta-atoms within the unit-cell can be used as a degree of freedom for controlling nonlinear THz generation, where achiral coupling provides full control over the amplitude of the generated THz field, while chiral coupling makes the THz generation sensitive to the handedness of the pump polarization. In particular, chiral coupling allows the realization of multiplexed pump-handedness-selective nonlinear metasurfaces, which is illustrated experimentally by selectively generating THz beams with different orbital angular momentum with a single nonlinear metasurface. This approach provides opportunities for developing various integrated nonlinear THz devices.-
dc.languageeng-
dc.publisherWiley-
dc.relation.ispartofAdvanced Functional Materials-
dc.subjectamplitude tuning-
dc.subjectbroadband terahertz generation-
dc.subjectcoupling-
dc.subjectnonlinear circular dichroism-
dc.subjectnonlinear metasurfaces-
dc.titleNonlinear Terahertz Generation: Chiral and Achiral Meta-Atom Coupling-
dc.typeArticle-
dc.identifier.doi10.1002/adfm.202300639-
dc.identifier.scopuseid_2-s2.0-85151473419-
dc.identifier.volume33-
dc.identifier.issue29-
dc.identifier.spage1-
dc.identifier.epage11-
dc.identifier.eissn1616-3028-
dc.identifier.isiWOS:000961733600001-
dc.publisher.placeWEINHEIM-
dc.identifier.issnl1616-301X-

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