Interference of surface waves in a metallic nanoslit | Zendy

Bora Ung | Zendy; Yunlong Sheng | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Interference of surface waves in a metallic nanoslit

Author(s) -

Bora Ung,

Yunlong Sheng

Publication year - 2007

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.15.001182

Subject(s) - optics , slit , surface plasmon polariton , surface plasmon , aperture (computer memory) , interference (communication) , scattering , resonator , beam (structure) , materials science , surface wave , extraordinary optical transmission , reflection (computer programming) , physics , plasmon , channel (broadcasting) , electrical engineering , computer science , acoustics , programming language , engineering

We investigate the interference of the surface plasmon polariton (SPP) with an incident beam on a metallic slit using the FDTD. We find that the bulk waves radiated at the slit edge by scattering of the SPP leak into the slit and induce accumulated charges within the skin depth, which excite new SPPs on the slit side-walls. The SPP on the top surface of aperture is coupled into the slit and induces the 2D asymmetric field distributions, including the horizontal and vertical Fabry-Perot multi-reflection resonator modes. We show that the addition of these modes with the slit waveguide modes induced by a normally incident beam is the interference between the SPP and the incident beam, which enhances or suppresses the slit transmission, depending on their relative phase.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research