Measurement of the complex dielectric constant of a single gold nanoparticle

Abstract

A differential interference contrast microscopy technique that employs a photonic crystal fiber as a white-light source is used to measure both the real and the imaginary part of the complex dielectric constant of single 10 and $15\mathrm{nm}$ gold nanoparticles over a wavelength range of $480\text{to}610\mathrm{nm}$. Noticeable deviations from bulk gold measurements are observed at short wavelengths and for individual particles even after taking into account finite-size surface damping effects.

© 2006 Optical Society of America

Nanoscale heating of laser irradiated single gold nanoparticles in liquid

Mitsuhiro Honda, Yuika Saito, Nicholas I Smith, Katsumasa Fujita, and Satoshi Kawata
Opt. Express 19(13) 12375-12383 (2011)

Particle plasmon resonances in L-shaped gold nanoparticles

Hannu Husu, Jouni Mäkitalo, Janne Laukkanen, Markku Kuittinen, and Martti Kauranen
Opt. Express 18(16) 16601-16606 (2010)

Comparison of near- and far-field measures for plasmon resonance of metallic nanoparticles

Benjamin M. Ross and Luke P. Lee
Opt. Lett. 34(7) 896-898 (2009)

Localization accuracy of gold nanoparticles in single particle orientation and rotational tracking

Fei Zhao, Kuangcai Chen, Bin Dong, Kai Yang, Yan Gu, and Ning Fang
Opt. Express 25(9) 9860-9871 (2017)

Optical constants and structural properties of thin gold films

Dmitry I. Yakubovsky, Aleksey V. Arsenin, Yury V. Stebunov, Dmitry Yu. Fedyanin, and Valentyn S. Volkov
Opt. Express 25(21) 25574-25587 (2017)