Open AccessComparative review of interferometric detection of plasmonic nanoparticles
Author(s) -
Adam Wax,
Amihai Meiri,
Siddarth Arumugam,
Matthew T. Rinehart
Publication year - 2013
Publication title -
biomedical optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.4.002166
Subject(s) - surface plasmon resonance , nanoparticle , interferometry , materials science , plasmon , nanotechnology , plasmonic nanoparticles , optics , absorption (acoustics) , optoelectronics , physics , composite material
Noble metal nanoparticles exhibit enhanced scattering and absorption at specific wavelengths due to a localized surface plamson resonance. This unique property can be exploited to enable the use of plasmonic nanoparticles as contrast agents in optical imaging. A range of optical techniques have been developed to detect nanoparticles in order to implement imaging schemes. Here we review several different approaches for using optical interferometry to detect the presence and concentration of nanoparticles. The strengths and weaknesses of the various approaches are discussed and quantitative comparisons of the achievable signal to noise ratios are presented. The benefits of each approach are outlined as they relate to specific application goals.