Modulation of optical spatial coherence by surface plasmon polaritons | Zendy

Shawn Divitt | Zendy; Martin Frimmer | Zendy; Taco D. Visser | Zendy; Lukáš Novotný | Zendy

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Modulation of optical spatial coherence by surface plasmon polaritons

Author(s) -

Shawn Divitt,

Martin Frimmer,

Taco D. Visser,

Lukáš Novotný

Publication year - 2016

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.41.003094

Subject(s) - optics , surface plasmon polariton , coherence (philosophical gambling strategy) , surface plasmon , physics , interference (communication) , spatial coherence , polariton , visibility , modulation (music) , spatial frequency , plasmon , slit , surface wave , coherence theory , coherence length , telecommunications , laser , channel (broadcasting) , quantum mechanics , computer science , acoustics , superconductivity

The interference pattern observed in Young's double-slit experiment is intimately related to the statistical correlations of the waves emitted by the slits. As the waves in the slits become more correlated, the visibility of the interference pattern increases. Here, we experimentally modulate the statistical correlations between the optical fields emitted by a pair of slits in a metal film. The interaction between the slits is mediated by surface plasmon polaritons and can be tuned by the slit separation, which allows us to either increase or decrease the spatial coherence of the emerging fields relative to that of the incoming fields.

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