Evolution of electromagnetic interference through nano-metallic double-slit

Kyu Min Chae; Hyun Ho Lee; Sang Youp Yim; Seung Han Park

doi:10.1364/OPEX.12.002870

Evolution of electromagnetic interference through nano-metallic double-slit

Kyu Min Chae, Hyun Ho Lee, Sang Youp Yim, Seung Han Park

Department of Physics

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

We investigated the characteristics of the near- and far-field regions of the interference for nano-metallic double-slits using a two-dimensional finite-difference time-domain (FDTD) method. We have found that the patterns in the near-field region have a phase difference of π with respect to those in the far-field region. A boundary, which separates the interference patterns of the two regions exists as a half circle and grows as the distance between the two slits increase. It is also found that evanescent waves can be enhanced and confined by coating the double-slit with a dielectric cladding.

Original language	English
Pages (from-to)	2870-2879
Number of pages	10
Journal	Optics Express
Volume	12
Issue number	13
DOIs	https://doi.org/10.1364/OPEX.12.002870
Publication status	Published - 2004 Jun

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OPEX.12.002870

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AB - We investigated the characteristics of the near- and far-field regions of the interference for nano-metallic double-slits using a two-dimensional finite-difference time-domain (FDTD) method. We have found that the patterns in the near-field region have a phase difference of π with respect to those in the far-field region. A boundary, which separates the interference patterns of the two regions exists as a half circle and grows as the distance between the two slits increase. It is also found that evanescent waves can be enhanced and confined by coating the double-slit with a dielectric cladding.

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Evolution of electromagnetic interference through nano-metallic double-slit

Abstract

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