| |  Online-Ressource |
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| Verfasst von: | Heldt, Tobias [VerfasserIn]  |
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| | Oelmann, Jan-Hendrik [VerfasserIn] |
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| | Guth, Lennart [VerfasserIn] |
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| | Lackmann, Nick [VerfasserIn] |
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| | Matt, Lukas [VerfasserIn] |
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| | Pfeifer, Thomas [VerfasserIn] |
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| | Crespo López-Urrutia, José Ramon [VerfasserIn] |
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| Titel: | Nanometric probing with a femtosecond, intra-cavity standing wave |
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| Verf.angabe: | Tobias Heldt, Jan-Hendrik Oelmann, Lennart Guth, Nick Lackmann, Lukas Matt, Thomas Pfeifer and José R. Crespo López-Urrutia |
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| E-Jahr: | 2024 |
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| Jahr: | 28. November 2024 |
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| Umfang: | 8 S. |
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| Illustrationen: | Illustrationen |
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| Fussnoten: | Gesehen am 02.06.2025 |
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| Titel Quelle: | Enthalten in: Nanophotonics |
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| Ort Quelle: | Berlin : de Gruyter, 2012 |
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| Jahr Quelle: | 2024 |
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| Band/Heft Quelle: | 13(2024), 25, Seite 4639-4646 |
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| ISSN Quelle: | 2192-8614 |
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| Abstract: | Optical standing waves are intrinsically nanometric, spatially fixed interference-field patterns. At a commensurate scale, metallic nanotips serve as coherent, atomic-sized electron sources. Here, we explore the localized photofield emission from a tungsten nanotip with a transient standing wave. It is generated within an optical cavity with counter-propagating femtosecond pulses from a near-infrared, 100-MHz frequency comb. Shifting the phase of the standing wave at the tip reveals its nodes and anti-nodes through a strong periodic modulation of the emission current. We find the emission angles to be distinct from those of a traveling wave, and attribute this to the ensuing localization of emission from different crystallographic planes. Supported by a simulation, we find that the angle of maximum field enhancement is controlled by the phase of the standing wave. Intra-cavity nanotip interaction not only provides higher intensities than in free-space propagation, but also allows for structuring the light field even in the transverse direction by selection of high-order cavity modes. |
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| DOI: | doi:10.1515/nanoph-2024-0332 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
kostenfrei: Volltext: https://doi.org/10.1515/nanoph-2024-0332 |
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| | kostenfrei: Volltext: https://www.degruyterbrill.com/document/doi/10.1515/nanoph-2024-0332/html |
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| | DOI: https://doi.org/10.1515/nanoph-2024-0332 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | cavity |
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| | electron emission |
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| | nanotip |
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| | standing wave |
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| | strong-field |
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| | ultrafast |
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| K10plus-PPN: | 1927225272 |
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| Verknüpfungen: | → Zeitschrift |
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Nanometric probing with a femtosecond, intra-cavity standing wave / Heldt, Tobias [VerfasserIn]; 28. November 2024 (Online-Ressource)
