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Updated: May 6, 2026

Performing Spectroscopy on Plasmonic Nanoparticles with Transmission-Based Nomarski-Type Differential Interference Contrast Microscopy
Published on: June 5, 2019
Differential interference contrast microscopy imaging of micrometer-long plasmonic nanowires
Ji Won Ha1, Kuangcai Chen, Ning Fang
1Ames Laboratory, U.S. Department of Energy, and Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA. nfang@iastate.edu.
Abstract:
We report polarization- and wavelength-sensitive differential interference contrast (DIC) images and intensities of 2 μm-long gold nanowires. The feasibility and usefulness of the gold nanowires as optical sensors and probes in biological systems are demonstrated through combining with a DIC microscope.
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