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Updated: May 16, 2026
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Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
Published on: January 3, 2016
Third-harmonic spectroscopy and modeling of the nonlinear response of plasmonic nanoantennas
Bernd Metzger1, Mario Hentschel, Markus Lippitz
14th Physics Institute and Research Center SCoPE, University of Stuttgart, Pfaffenwaldring 57, Stuttgart 70569, Germany. b.metzger@physik.uni‑stuttgart.de
Optics Letters
|November 21, 2012
Abstract:
We perform third-harmonic (TH) spectroscopy on rod-type gold nanoantenna arrays using widely tunable sub-30 fs laser pulses. We find the peak of the TH generation efficiency of the antenna arrays always slightly redshifted with respect to the peak of their linear extinction spectrum. We model the wavelength-dependent TH response quantitatively using a nonlinear harmonic oscillator model.
