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Portrait of Jonas Tegenfeldt. Photo: Kennet Ruona

Jonas Tegenfeldt

Professor, Coordinator Nanobiology & Neuronanoscience

Portrait of Jonas Tegenfeldt. Photo: Kennet Ruona

Polarization dependence of light intensity distribution from nanometer metallic slits

Author

  • C. H. Wei
  • Wunshain Fann
  • P. K. Wei
  • Jonas O. Tegenfeldt
  • Robert H. Austin

Summary, in English

In this work, the near-field and far-field electric magnetic (EM) wave distributions of metallic slits was observed using tapered fiber probe and modelled using finite difference time domain (FDTD) computer simulations. The EM wave field distribution from rectangular slits with widths 100 nm, 300 nm, and 500 nm was mapped with excitation wavelength λ = 532 nm. λ/2 can be considered a characteristic length for the problem. From the experiments and FDTD simulation, E wave is found to be governed by the surface plasmon wave (SPW) which results in ill near field pattern and cannot be confined in the slit. On the contrary, E wave has a well-shaped field distribution and can be confined in the slit.

Department/s

  • Solid State Physics

Publishing year

2003-01-01

Language

English

Publication/Series

CLEO/Pacific Rim 2003 - 5th Pacific Rim Conference on Lasers and Electro-Optics : Photonics Lights Innovation, from Nano-Structures and Devices to Systems and Networks, Proceedings

Volume

2

Document type

Conference paper

Publisher

Institute of Electrical and Electronics Engineers Inc.

Conference name

5th Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 2003

Conference date

2003-12-15 - 2003-12-19

Conference place

Taipei, Taiwan, Province of China

Status

Published

ISBN/ISSN/Other

  • ISBN: 0780377664