Related Experiment Video
Updated: May 11, 2026

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
Published on: July 21, 2018
High-resolution simultaneous microscopy of refractive index and fluorescent intensity distributions by using
Goro Terakado1, Jun Ning, Koyo Watanabe
1Division of Engineering for Composite Functions, Muroran Institute of Technology, Mizumoto 27-1, Muroran, Hokkaido 050-8585, Japan.
Abstract:
We propose a localized surface plasmon microscope that provides simultaneous imaging of refractive index and fluorescent intensity distributions. We show experimental images of fluorescent and transparent particles under circular pupil illumination to confirm simultaneous high-resolution imaging. Furthermore, we investigate applicability of annular pupil illumination employing two axicons to improve energy efficiency in the fluorescent imaging and find that a brighter image is obtainable by maintaining high spatial resolution for both imaging modes.
Related Concept Videos
Super-resolution Fluorescence Microscopy
Confocal Fluorescence Microscopy

