Evanescent-Field-Induced Second Harmonic Generation by Noncentrosymmetric Nanoparticles | Zendy

R. Bäumner | Zendy; Luigi Bonacina | Zendy; Jörg Enderlein | Zendy; Jèrôme Extermann | Zendy; Thomas Fricke-Begemann | Zendy; G. Marowsky | Zendy; JeanPierre Wolf | Zendy

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Evanescent-Field-Induced Second Harmonic Generation by Noncentrosymmetric Nanoparticles

Author(s) -

R. Bäumner,

Luigi Bonacina,

Jörg Enderlein,

Jèrôme Extermann,

Thomas Fricke-Begemann,

G. Marowsky,

JeanPierre Wolf

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.023218

Subject(s) - optics , second harmonic generation , evanescent wave , nonlinear optics , field (mathematics) , materials science , high harmonic generation , nanoparticle , harmonic , refractive index , physics , optoelectronics , nanotechnology , laser , quantum mechanics , mathematics , pure mathematics

We demonstrate the excitation of second harmonic radiation of noncentrosymmetric nanoparticles dispersed on a planar optical waveguide by the evanescent field of the guided mode. Polarization imaging reveals information on the orientation of the crystal axis of individual nanoparticles. Interference patterns generated from adjacent particles at the second harmonic frequency are--to the authors knowledge--observed for the first time. The actual form of the interference pattern is explained on the basis of a dipole radiation model, taking into account the nanoparticles' orientation, surface effects, and the characteristics of the imaging optics.

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