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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 9,
  • Issue 7,
  • pp. 072901-072901
  • (2011)

Influence of incident light polarization on photonic nanojet

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Abstract

Dielectric microspheres can confine light in a three-dimensional (3D) region called photonic nanojet is shown when they are illuminated by different polarized beams. The influence of incident light polarization on photonic nanojet using the finite-difference time-domain (FDTD) method is demostrated. The axial field intensity profiles of photonic nanojets for both the linear and circular polarization incident beams are very similar. Azimuthal polarization incident beam induces a doughnut beam along the optical axis, while the radial polarization incident beam permits one to reach an effective volume as small as 0.7(\lambda/n)3.

© 2011 Chinese Optics Letters

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