Creation and annihilation of phase singularities near a sub-wavelength slit | Zendy

Hugo F. Schouten | Zendy; Taco D. Visser | Zendy; Greg Gbur | Zendy; D. Lenstra | Zendy; H. Blok | Zendy

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Creation and annihilation of phase singularities near a sub-wavelength slit

Author(s) -

Hugo F. Schouten,

Taco D. Visser,

Greg Gbur,

D. Lenstra,

H. Blok

Publication year - 2003

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.11.000371

Subject(s) - poynting vector , optics , annihilation , slit , physics , wavelength , phase (matter) , gravitational singularity , extraordinary optical transmission , surface plasmon , surface plasmon polariton , plasmon , quantum mechanics , magnetic field

The anomalously-high transmission of light through subwavelength apertures is a phenomenon which has been observed in numerous experiments, but whose theoretical explanation is incomplete. In this article we present a numerical analysis of the power fl ow (characterized by the Poynting vector)of the electromagnetic fi eld near a sub-wavelength sized slit in a thin metal plate, and demonstrate that the enhanced transmission is accompanied by the annihilation of phase singularities in the power fl ow near the slit.

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