Surface-Enhanced Optical Third-Harmonic Generation in Ag Island Films

E. M. Kim, S. S. Elovikov, T. V. Murzina, A. A. Nikulin, O. A. Aktsipetrov, M. A. Bader, and G. Marowsky
Phys. Rev. Lett. 95, 227402 – Published 23 November 2005

Abstract

Surface-enhanced optical third-harmonic generation (THG) is observed in silver island films. The THG intensity from Ag nanoparticles is enhanced by more than 2 orders of magnitude with respect to the THG intensity from a smooth and homogeneous silver surface. This enhancement is attributed to a local plasmon excitation and resonance of the local field at the third-harmonic wavelength. The diffuse and depolarized component of the enhanced THG is associated with the third-order hyper-Rayleigh scattering in a two-dimensional random array of silver nanoparticles.

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  • Received 18 May 2005

DOI:https://doi.org/10.1103/PhysRevLett.95.227402

©2005 American Physical Society

Authors & Affiliations

E. M. Kim, S. S. Elovikov, T. V. Murzina, A. A. Nikulin, and O. A. Aktsipetrov*

  • Department of Physics, Moscow State University, 119992 Moscow, Russia

M. A. Bader and G. Marowsky

  • Laser-Laboratorium Göttingen, D-37077 Göttingen, Germany

  • *Electronic address: aktsip@shg.ru

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Issue

Vol. 95, Iss. 22 — 25 November 2005

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