Enhanced terahertz emission from mushroom-shaped InAs nanowire network induced by linear and nonlinear optical effects

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorXi, Fugangen_US
dc.contributor.authorYang, Heen_US
dc.contributor.authorKhayrudinov, Vladislaven_US
dc.contributor.authorHe, Yuhangen_US
dc.contributor.authorHaggren, Tuomasen_US
dc.contributor.authorZhou, Yixuanen_US
dc.contributor.authorLipsanen, Harrien_US
dc.contributor.authorSun, Zhipeien_US
dc.contributor.authorXu, Xinlongen_US
dc.contributor.departmentDepartment of Electronics and Nanoengineeringen
dc.contributor.departmentDepartment of Neuroscience and Biomedical Engineeringen
dc.contributor.groupauthorCentre of Excellence in Quantum Technology, QTFen
dc.contributor.groupauthorHarri Lipsanen Groupen
dc.contributor.groupauthorZhipei Sun Groupen
dc.contributor.organizationNorthwest Universityen_US
dc.date.accessioned2021-12-31T13:59:06Z
dc.date.available2021-12-31T13:59:06Z
dc.date.embargoinfo:eu-repo/date/embargoEnd/2022-12-04en_US
dc.date.issued2022-02-19en_US
dc.description| openaire: EC/H2020/820423/EU//S2QUIP | openaire: EC/H2020/834742/EU//ATOP | openaire: EC/H2020/965124/EU//FEMTOCHIP
dc.description.abstractThe development of powerful terahertz (THz) emitters is the cornerstone for future THz applications, such as communication, medical biology, non-destructive inspection, and scientific research. Here, we report the THz emission properties and mechanisms of mushroom-shaped InAs nanowire (NW) network using linearly polarized laser excitation. By investigating the dependence of THz signal to the incidence pump light properties (e.g. incident angle, direction, fluence, and polarization angle), we conclude that the THz wave emission from the InAs NW network is induced by the combination of linear and nonlinear optical effects. The former is a transient photocurrent accelerated by the photo-Dember field, while the latter is related to the resonant optical rectification effect. Moreover, the p-polarized THz wave emission component is governed by the linear optical effect with a proportion of ∼85% and the nonlinear optical effect of ∼15%. In comparison, the s-polarized THz wave emission component is mainly decided by the nonlinear optical effect. The THz emission is speculated to be enhanced by the localized surface plasmon resonance absorption of the In droplets on top of the NWs. This work verifies the nonlinear optical mechanism in the THz generation of semiconductor NWs and provides an enlightening reference for the structural design of powerful and flexible THz surface and interface emitters in transmission geometry.en
dc.description.versionPeer revieweden
dc.format.extent10
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationXi, F, Yang, H, Khayrudinov, V, He, Y, Haggren, T, Zhou, Y, Lipsanen, H, Sun, Z & Xu, X 2022, ' Enhanced terahertz emission from mushroom-shaped InAs nanowire network induced by linear and nonlinear optical effects ', Nanotechnology, vol. 33, no. 8, 085207 . https://doi.org/10.1088/1361-6528/ac3948en
dc.identifier.doi10.1088/1361-6528/ac3948en_US
dc.identifier.issn0957-4484
dc.identifier.issn1361-6528
dc.identifier.otherPURE UUID: b6253920-311b-4ec4-b62a-ef180de35862en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/b6253920-311b-4ec4-b62a-ef180de35862en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85121810787&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/89594888/Xi_Enhanced_terahertz_emission_from_mushroom_shaped_InAs_Nanowired.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/112029
dc.identifier.urnURN:NBN:fi:aalto-2021123111169
dc.language.isoenen
dc.publisherIOP Publishing Ltd.
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/965124/EU//FEMTOCHIPen_US
dc.relation.ispartofseriesNanotechnologyen
dc.relation.ispartofseriesVolume 33, issue 8en
dc.rightsopenAccessen
dc.subject.keywordterahertz emitteren_US
dc.subject.keywordInAsen_US
dc.subject.keywordnanowireen_US
dc.subject.keywordresonant optical rectificationen_US
dc.subject.keywordphoto-Dember effecten_US
dc.subject.keywordLAYERED MOS2 CRYSTALen_US
dc.subject.keywordSURFACE EMISSIONen_US
dc.subject.keywordMAGNETIC-FIELDen_US
dc.subject.keywordTHZ GENERATIONen_US
dc.subject.keywordRECTIFICATIONen_US
dc.subject.keywordRADIATIONen_US
dc.subject.keywordGEOMETRYen_US
dc.titleEnhanced terahertz emission from mushroom-shaped InAs nanowire network induced by linear and nonlinear optical effectsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
Files