Multimode Lasing in Supercell Plasmonic Nanoparticle Arrays

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorHeilmann, Rebeccaen_US
dc.contributor.authorArjas, Kristianen_US
dc.contributor.authorHakala, Tommi K.en_US
dc.contributor.authorTörmä, Päivien_US
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.groupauthorQuantum Dynamicsen
dc.contributor.organizationUniversity of Eastern Finlanden_US
dc.date.accessioned2024-01-04T08:48:20Z
dc.date.available2024-01-04T08:48:20Z
dc.date.issued2023-11-15en_US
dc.description.abstractMulticolor light sources can be used in applications such as lighting and multiplexing signals. In photonic and plasmonic systems, one way to achieve multicolor light is via multimode lasing. To achieve this, plasmonic nanoparticle arrays are typically arranged in superlattices that lead to multiple dispersions of the single arrays coupled via the Bragg superlattice Bragg modes. Here, we show an alternative way to enable multimode lasing in plasmonic nanoparticle arrays. We design a supercell in a square lattice by leaving part of the lattice sites empty. This results in multiple dispersive branches caused by the supercell period and hence creates additional band edges that can support lasing. We experimentally demonstrate multimode lasing in such a supercell array. Furthermore, we identify the lasing modes by calculating the dispersion by combining the structure factor of the array design with an empty lattice approximation. We conclude that the lasing modes are the 74th Γ- and 106th X-point of the supercell. By tuning the square lattice period with respect to the gain emission, we can control the modes that lase. Finally, we show that the lasing modes exhibit a combination of transverse electric and transverse magnetic mode characteristics in polarization-resolved measurements.en
dc.description.versionPeer revieweden
dc.format.extent8
dc.format.extent3955-3962
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationHeilmann, R, Arjas, K, Hakala, T K & Törmä, P 2023, ' Multimode Lasing in Supercell Plasmonic Nanoparticle Arrays ', ACS Photonics, vol. 10, no. 11, pp. 3955-3962 . https://doi.org/10.1021/acsphotonics.3c00761en
dc.identifier.doi10.1021/acsphotonics.3c00761en_US
dc.identifier.issn2330-4022
dc.identifier.otherPURE UUID: 345e9584-dbdc-4f92-90b4-6d40065c2706en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/345e9584-dbdc-4f92-90b4-6d40065c2706en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85176094719&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/131508068/Multimode_Lasing_in_Supercell_Plasmonic_Nanoparticle_Arrays.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/125386
dc.identifier.urnURN:NBN:fi:aalto-202401041075
dc.language.isoenen
dc.publisherAmerican Chemical Society
dc.relation.ispartofseriesACS Photonicsen
dc.relation.ispartofseriesVolume 10, issue 11en
dc.rightsopenAccessen
dc.titleMultimode Lasing in Supercell Plasmonic Nanoparticle Arraysen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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