Optical Negative Refraction in Ferrofluids with Magnetocontrollability

Abstract

We numerically demonstrate optical negative refraction in ferrofluids containing isotropic Fe3O4 nanoparticles, each having an isotropic Ag shell, in the presence of an external dc magnetic field H. The all-angle broadband optical negative refraction with magnetocontrollability arises from H-induced chains or columns. They result in hyperbolic equifrequency contour for transverse magnetic waves propagating in the system. The finite element simulations verify the analyses using the effective medium approximation. Experimental demonstration and potential applications are suggested and discussed.

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Document Details

Document Type
Technical Report
Publication Date
Jan 22, 2010
Accession Number
ADA531101

Entities

People

  • J. P. Huang
  • K. W. Yu
  • Lingyuan Gao
  • Xiaoxuan Zhang
  • Y. M. Liu
  • Yifeng Gao

Organizations

  • Fudan University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Broadband
  • Electric Fields
  • Ferrofluids
  • Films
  • Frequency
  • Hong Kong
  • Magnetic Fields
  • Materials
  • Materials Laboratories
  • Materials Science
  • Nanoparticles
  • Optical Properties
  • Physics
  • Physics Laboratories
  • Refraction
  • Refractive Index
  • Simulations

Fields of Study

  • Physics

Readers

  • Nanocomposite Materials Science
  • Optical Physics and Photonics.
  • Plasma Physics / Magnetohydrodynamics

Technology Areas

  • Biotechnology