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Dynamic control of optical transmission through a nano-slit using surface plasmons
KTH, School of Engineering Sciences (SCI), Applied Physics, Biomedical and X-ray Physics.ORCID iD: 0000-0003-0152-6533
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2015 (English)In: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 23, no 17, 22512-22519 p.Article in journal (Refereed) Published
Abstract [en]

We demonstrate how the optical transmission by a directly illuminated, sub-wavelength slit in a metal film can be dynamically controlled by varying the incident beam's phase relative to that of a stream of surface plasmon polaritions which are generated at a nearby grating. The transmission can be smoothly altered from its maximum value to practically zero. The results from a simple model and from rigorous numerical simulations are in excellent agreement with our experimental results. Our method may be applied in all-optical switching.

Place, publisher, year, edition, pages
[Daniel, Salman; Saastamoinen, Kimmo; Saastamoinen, Toni; Friberg, Ari T.] Univ Eastern Finland, Inst Photon, Joensuu, Finland. [Rahomaki, Jussi] Royal Inst Technol KTH, Biomed & Xray Phys, Stockholm, Sweden. [Visser, Taco D.] Delft Univ Technol, Fac Elect Engn Math & Comp Sci, Delft, Netherlands. [Visser, Taco D.] Vrije Univ Amsterdam, Dept Phys & Astron, Amsterdam, Netherlands. [Visser, Taco D.] Vrije Univ Amsterdam, LaserLab, Amsterdam, Netherlands., 2015. Vol. 23, no 17, 22512-22519 p.
National Category
Atom and Molecular Physics and Optics
URN: urn:nbn:se:kth:diva-176374DOI: 10.1364/OE.23.022512ISI: 000362418300084PubMedID: 26368218ScopusID: 2-s2.0-84957542811OAI: diva2:867861

QC 20151106

Available from: 2015-11-06 Created: 2015-11-03 Last updated: 2015-11-06Bibliographically approved

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