Mono-crystalline gold platelets: a high-quality platform for surface plasmon polaritons
We use mono-crystalline gold platelets with ultra-smooth surfaces and superior plasmonic properties to investigate the formation of interference patterns caused by surface plasmon polaritons (SPPs) with scattering-type scanning near-field microscopy at 521 and 633 nm. By applying a Fourier analysis...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2020-02-01
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| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2019-0362 |
| _version_ | 1830187138377842688 |
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| author | Kaltenecker Korbinian J. Krauss Enno Casses Laura Geisler Mathias Hecht Bert Mortensen N. Asger Jepsen Peter Uhd Stenger Nicolas |
| author_facet | Kaltenecker Korbinian J. Krauss Enno Casses Laura Geisler Mathias Hecht Bert Mortensen N. Asger Jepsen Peter Uhd Stenger Nicolas |
| author_sort | Kaltenecker Korbinian J. |
| collection | DOAJ |
| description | We use mono-crystalline gold platelets with ultra-smooth surfaces and superior plasmonic properties to investigate the formation of interference patterns caused by surface plasmon polaritons (SPPs) with scattering-type scanning near-field microscopy at 521 and 633 nm. By applying a Fourier analysis approach, we can identify and separate several signal channels related to SPPs launched and scattered by the atomic force microscopy tip and the edges of the platelet. Especially at the excitation wavelength of 633 nm, we can isolate a region in the center of the platelets where we find only contributions of SPPs which are launched by the tip and reflected at the edges. These signatures are used to determine the SPP wavelength of λSPP = 606 nm in good agreement with theoretical predictions. Furthermore, we were still able to measure SPP signals after 20 µm propagation, which demonstrates impressively the superior plasmonic quality of these mono-crystalline gold platelets. |
| first_indexed | 2024-12-17T22:23:41Z |
| format | Article |
| id | doaj.art-b683115a40054aa4ba361c14840074ff |
| institution | Directory Open Access Journal |
| issn | 2192-8614 |
| language | English |
| last_indexed | 2024-12-17T22:23:41Z |
| publishDate | 2020-02-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj.art-b683115a40054aa4ba361c14840074ff2022-12-21T21:30:24ZengDe GruyterNanophotonics2192-86142020-02-019250952210.1515/nanoph-2019-0362nanoph-2019-0362Mono-crystalline gold platelets: a high-quality platform for surface plasmon polaritonsKaltenecker Korbinian J.0Krauss Enno1Casses Laura2Geisler Mathias3Hecht Bert4Mortensen N. Asger5Jepsen Peter Uhd6Stenger Nicolas7Department of Photonics Engineering, Technical University of Denmark, DK-2800 Kongens Lyngby, DenmarkNano-Optics and Biophotonics Group, Experimentelle Physik 5, Physikalisches Institut, Universität Würzburg, D-97074 Würzburg, GermanyDepartment of Photonics Engineering, Technical University of Denmark, DK-2800 Kongens Lyngby, DenmarkDepartment of Photonics Engineering, Technical University of Denmark, DK-2800 Kongens Lyngby, DenmarkNano-Optics and Biophotonics Group, Experimentelle Physik 5, Physikalisches Institut, Universität Würzburg, D-97074 Würzburg, GermanyCenter for Nanostructured Graphene, Technical University of Denmark, DK-2800 Kongens Lyngby, DenmarkDepartment of Photonics Engineering, Technical University of Denmark, DK-2800 Kongens Lyngby, DenmarkDepartment of Photonics Engineering, Technical University of Denmark, DK-2800 Kongens Lyngby, DenmarkWe use mono-crystalline gold platelets with ultra-smooth surfaces and superior plasmonic properties to investigate the formation of interference patterns caused by surface plasmon polaritons (SPPs) with scattering-type scanning near-field microscopy at 521 and 633 nm. By applying a Fourier analysis approach, we can identify and separate several signal channels related to SPPs launched and scattered by the atomic force microscopy tip and the edges of the platelet. Especially at the excitation wavelength of 633 nm, we can isolate a region in the center of the platelets where we find only contributions of SPPs which are launched by the tip and reflected at the edges. These signatures are used to determine the SPP wavelength of λSPP = 606 nm in good agreement with theoretical predictions. Furthermore, we were still able to measure SPP signals after 20 µm propagation, which demonstrates impressively the superior plasmonic quality of these mono-crystalline gold platelets.https://doi.org/10.1515/nanoph-2019-0362mono-crystalline goldnear-field imagingplasmonics |
| spellingShingle | Kaltenecker Korbinian J. Krauss Enno Casses Laura Geisler Mathias Hecht Bert Mortensen N. Asger Jepsen Peter Uhd Stenger Nicolas Mono-crystalline gold platelets: a high-quality platform for surface plasmon polaritons Nanophotonics mono-crystalline gold near-field imaging plasmonics |
| title | Mono-crystalline gold platelets: a high-quality platform for surface plasmon polaritons |
| title_full | Mono-crystalline gold platelets: a high-quality platform for surface plasmon polaritons |
| title_fullStr | Mono-crystalline gold platelets: a high-quality platform for surface plasmon polaritons |
| title_full_unstemmed | Mono-crystalline gold platelets: a high-quality platform for surface plasmon polaritons |
| title_short | Mono-crystalline gold platelets: a high-quality platform for surface plasmon polaritons |
| title_sort | mono crystalline gold platelets a high quality platform for surface plasmon polaritons |
| topic | mono-crystalline gold near-field imaging plasmonics |
| url | https://doi.org/10.1515/nanoph-2019-0362 |
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