Evolution of electromagnetic interference through nano-metallic double-slit

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

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


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 languageEnglish
Pages (from-to)2870-2879
Number of pages10
JournalOptics Express
Issue number13
Publication statusPublished - 2004 Jun

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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