Dynamic control of optical transmission through a nano-slit using surface plasmons | Zendy

Salman Daniel | Zendy; Kimmo Saastamoinen | Zendy; Toni Saastamoinen | Zendy; Jussi Rahomäki | Zendy; Ari T. Friberg | Zendy; Taco D. Visser | Zendy

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Dynamic control of optical transmission through a nano-slit using surface plasmons

Author(s) -

Salman Daniel,

Kimmo Saastamoinen,

Toni Saastamoinen,

Jussi Rahomäki,

Ari T. Friberg,

Taco D. Visser

Publication year - 2015

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.23.022512

Subject(s) - surface plasmon , optics , extraordinary optical transmission , slit , materials science , transmission (telecommunications) , grating , plasmon , wavelength , surface plasmon polariton , phase (matter) , diffraction grating , physics , computer science , telecommunications , quantum mechanics

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.

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