Quantitative determination of the electric field strength in a plasmon focus from ponderomotive energy shifts
Spectroscopic photoemission microscopy is used to detect and quantify a ponderomotive shift in the energy of electrons that are emitted from a surface plasmon polariton focus. The focus is formed on an atomically flat Au(111) surface by an Archimedean spiral and is spatiotemporally separated from th...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2022-08-01
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| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2022-0284 |
| _version_ | 1797947931543732224 |
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| author | Dreher Pascal Janoschka David Neuhaus Alexander Frank Bettina Giessen Harald Horn-von Hoegen Michael Meyer zu Heringdorf Frank-J. |
| author_facet | Dreher Pascal Janoschka David Neuhaus Alexander Frank Bettina Giessen Harald Horn-von Hoegen Michael Meyer zu Heringdorf Frank-J. |
| author_sort | Dreher Pascal |
| collection | DOAJ |
| description | Spectroscopic photoemission microscopy is used to detect and quantify a ponderomotive shift in the energy of electrons that are emitted from a surface plasmon polariton focus. The focus is formed on an atomically flat Au(111) surface by an Archimedean spiral and is spatiotemporally separated from the circularly polarized light pulse used to excite the spiral. A spectroscopic analysis of electrons emitted from the focus exhibits a peaked above-threshold electron emission spectrum. From the shift of the peaks as function of laser power the field strength of the surface plasmon polariton was quantitatively determined without free parameters. Estimations of the Keldysh parameter γ = 4.4 and the adiabaticity parameter δ = 4700 indicate that electron emission occurs in a regime of multiplasmon absorption and nonlocalized surface plasmon fields. |
| first_indexed | 2024-04-10T21:34:21Z |
| format | Article |
| id | doaj.art-f26a25aca21047ed897203ddd1640725 |
| institution | Directory Open Access Journal |
| issn | 2192-8614 |
| language | English |
| last_indexed | 2024-04-10T21:34:21Z |
| publishDate | 2022-08-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj.art-f26a25aca21047ed897203ddd16407252023-01-19T12:47:01ZengDe GruyterNanophotonics2192-86142022-08-0111163687369410.1515/nanoph-2022-0284Quantitative determination of the electric field strength in a plasmon focus from ponderomotive energy shiftsDreher Pascal0Janoschka David1Neuhaus Alexander2Frank Bettina3Giessen Harald4Horn-von Hoegen Michael5Meyer zu Heringdorf Frank-J.6Faculty of Physics and Center for Nanointegration, Duisburg-Essen (CENIDE), University of Duisburg-Essen, 47048Duisburg, GermanyFaculty of Physics and Center for Nanointegration, Duisburg-Essen (CENIDE), University of Duisburg-Essen, 47048Duisburg, GermanyFaculty of Physics and Center for Nanointegration, Duisburg-Essen (CENIDE), University of Duisburg-Essen, 47048Duisburg, Germany4th Physics Institute, Research Center SCoPE, and Integrated Quantum Science and Technology Center, University of Stuttgart, 70569Stuttgart, Germany4th Physics Institute, Research Center SCoPE, and Integrated Quantum Science and Technology Center, University of Stuttgart, 70569Stuttgart, GermanyFaculty of Physics and Center for Nanointegration, Duisburg-Essen (CENIDE), University of Duisburg-Essen, 47048Duisburg, GermanyFaculty of Physics and Center for Nanointegration, Duisburg-Essen (CENIDE), University of Duisburg-Essen, 47048Duisburg, GermanySpectroscopic photoemission microscopy is used to detect and quantify a ponderomotive shift in the energy of electrons that are emitted from a surface plasmon polariton focus. The focus is formed on an atomically flat Au(111) surface by an Archimedean spiral and is spatiotemporally separated from the circularly polarized light pulse used to excite the spiral. A spectroscopic analysis of electrons emitted from the focus exhibits a peaked above-threshold electron emission spectrum. From the shift of the peaks as function of laser power the field strength of the surface plasmon polariton was quantitatively determined without free parameters. Estimations of the Keldysh parameter γ = 4.4 and the adiabaticity parameter δ = 4700 indicate that electron emission occurs in a regime of multiplasmon absorption and nonlocalized surface plasmon fields.https://doi.org/10.1515/nanoph-2022-0284photoelectron spectroscopyphotoemission microscopyponderomotive energysurface plasmon polariton |
| spellingShingle | Dreher Pascal Janoschka David Neuhaus Alexander Frank Bettina Giessen Harald Horn-von Hoegen Michael Meyer zu Heringdorf Frank-J. Quantitative determination of the electric field strength in a plasmon focus from ponderomotive energy shifts Nanophotonics photoelectron spectroscopy photoemission microscopy ponderomotive energy surface plasmon polariton |
| title | Quantitative determination of the electric field strength in a plasmon focus from ponderomotive energy shifts |
| title_full | Quantitative determination of the electric field strength in a plasmon focus from ponderomotive energy shifts |
| title_fullStr | Quantitative determination of the electric field strength in a plasmon focus from ponderomotive energy shifts |
| title_full_unstemmed | Quantitative determination of the electric field strength in a plasmon focus from ponderomotive energy shifts |
| title_short | Quantitative determination of the electric field strength in a plasmon focus from ponderomotive energy shifts |
| title_sort | quantitative determination of the electric field strength in a plasmon focus from ponderomotive energy shifts |
| topic | photoelectron spectroscopy photoemission microscopy ponderomotive energy surface plasmon polariton |
| url | https://doi.org/10.1515/nanoph-2022-0284 |
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