4.6 Article

Coherent and incoherent second harmonic generation in planar G-shaped nanostructures

Journal

OPTICS LETTERS
Volume 36, Issue 18, Pages 3681-3683

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OL.36.003681

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Funding

  1. Fund for Scientific Research-Flanders (FWO-V)
  2. Katholieke Universiteit Leuven (GOA)
  3. Flemish government
  4. Belgian Interuniversity Attraction Poles (IAP) Programme
  5. Russian Foundation for Basic Research (RFBR) [11-02-01289, 10-02-00967]

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Azimuthal anisotropy of Stokes parameters of the second harmonic generation ( SHG) generated and observed in reflection from a periodic planar area of G-shaped gold nanostructures is studied. A strong anisotropy of both coherent and incoherent SHG components is observed. Finite-difference time-domain calculations prove that the observed effects are due to the anisotropic enhancement of the fundamental radiation within the G-shaped structures. (C) 2011 Optical Society of America

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