Gouy phase effects on photocurrents in plasmonic nanogaps driven by single-cycle pulses
Abstract: The investigation of optical phenomena in the strong-field regime requires few-cycle laser pulses at field strengths exceeding gigavolts per meter (GV/m). Surprisingly, such conditions can be reached by tightly focusing pJ-level pulses with nearly octave spanning optical bandwidth onto plasmonic nanostructures, exploiting the field-enhancement effect. In this situation, the Gouy phase of the focused beam can deviate significantly from the monochromatic scenario. Here, we study the effect of the Gouy phase of a pulse exploited to drive coherent strong-field photocurrents within a plasmonic gap nanoantenna. While the influence of the specific Gouy phase profile in the experiment approaches the monochromatic case closely, this scheme may be utilized to identify more intricate phase profiles at sub-diffraction scale. Our results pave the way for Gouy phase engineering at picojoule (pJ) pulse energy levels, enabling the optimization of strong-field optical phenomena.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Gouy phase effects on photocurrents in plasmonic nanogaps driven by single-cycle pulses ; volume:13 ; number:15 ; year:2024 ; pages:2803-2809 ; extent:7
Nanophotonics ; 13, Heft 15 (2024), 2803-2809 (gesamt 7)
- Urheber
- DOI
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10.1515/nanoph-2023-0897
- URN
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urn:nbn:de:101:1-2407081544474.092635637879
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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14.08.2025, 10:58 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Rossetti, Andrea
- Falk, Matthias
- Leitenstorfer, Alfred
- Brida, Daniele
- Ludwig, Markus
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