Surface plasmon-assisted widefield non-linear imaging of gold structures
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Updated: Jul 8, 2026

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
Published on: January 3, 2016
C Qian1, T S Velinov, M C Pitter
1Institute of Biophysics, Imaging and Optical Sciences (IBIOS), School of Electrical and Electronic Engineering, University of Nottingham, Nottingham, UK. eexcq@nottingham.ac.uk
Abstract:
In this paper, we demonstrate how the confinement and enhancement of optical fields by surface plasmon resonance can allow non-linear microscopy to be performed in a simple, cost-effective widefield configuration, rather than the more usual laser-scanning arrangement. We present second harmonic and two-photon luminescence widefield images of dielectric and gold samples obtained with both prism-based and high numerical aperture objective ('prismless') microscope arrangements.
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