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Related Concept Videos

Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.
Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...

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Related Experiment Video

Updated: May 25, 2026

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
09:00

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

Published on: December 11, 2013

Surface plasmon leakage radiation microscopy at the diffraction limit.

A Hohenau1, J R Krenn, A Drezet

  • 1Institute of Physics, Karl-Franzens University Graz, Universitatsplatz 5,8010 Graz, Austria. andreas.hohenau@uni-graz.at

Optics Express
|January 26, 2012
PubMed
Summary
This summary is machine-generated.

This study explains image formation in optical leakage radiation microscopy for surface plasmon-polaritons. Researchers developed a formula to predict fringe patterns, aiding in understanding microscopy imaging.

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Last Updated: May 25, 2026

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07:39

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

Area of Science:

  • Optics and Photonics
  • Condensed Matter Physics

Background:

  • Optical leakage radiation microscopy visualizes surface plasmon-polaritons (SPPs).
  • Understanding SPP behavior is crucial for nanoscale optical applications.

Purpose of the Study:

  • To elucidate the image formation process in optical leakage radiation microscopy.
  • To correlate experimental observations with theoretical simulations of SPP emitters.
  • To provide a predictive tool for fringe patterns in microscopy images.

Main Methods:

  • Experimental recording of images using optical leakage radiation microscopy.
  • Simulations of point-like surface plasmon-polariton emitters.
  • Comparison of experimental data with simulation results.
  • Analysis of fringe patterns and periodicity.

Main Results:

  • Successful assignment of observed fringe patterns to SPP emission characteristics.
  • Development of a simple formula for predicting fringe periodicity.
  • Discussion of the impact of optical aberrations on image formation.

Conclusions:

  • The study clarifies image formation in SPP microscopy.
  • The provided formula aids in interpreting microscopy data.
  • Understanding aberration effects is key for accurate imaging.