Related Experiment Video
Updated: May 14, 2026
15:06
Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
Published on: January 3, 2016
Plasmonic nanopore for electrical profiling of optical intensity landscapes
Magnus P Jonsson1, Cees Dekker
1Department of Bionanoscience, Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands.
Nano Letters
|February 14, 2013
Summary
We developed a plasmonic nanopore device for high-resolution optical intensity mapping. This method uses plasmonic heating detected electrically, enabling detailed 3D profiling of laser beams and temperature estimation.
Area of Science:
- Nanotechnology
- Optical Physics
- Materials Science
Background:
- Accurate mapping of optical intensity distributions is crucial for various scientific and technological applications.
- Existing methods often lack the resolution or sensitivity required for detailed analysis of light-matter interactions at the nanoscale.
Purpose of the Study:
- To introduce a novel method for subdiffraction-limited optical intensity mapping.
- To demonstrate a new device, the plasmonic nanopore, for sensitive optical measurements.
- To characterize the 3D optical intensity distribution of a focused laser beam.
Main Methods:
- Integration of a plasmonic bowtie nanoantenna with a 10 nm solid-state nanopore.
- Utilizing variations in local optical intensity to modulate plasmonic heating.
- Measuring changes in ionic conductance of the nanopore to detect plasmonic heating.
Main Results:
- Successful profiling of a tightly focused laser beam's focal volume with subdiffraction-limited resolution.
- Observed complex 3D optical intensity distributions that align with theoretical calculations.
- Demonstrated quantitative estimation of temperature near plasmonic nanostructures via nanopore conductance.
Conclusions:
- The plasmonic nanopore offers a sensitive and high-resolution approach for optical intensity mapping.
- This technique provides valuable insights into light-matter interactions at the nanoscale.
- The method has potential applications in laser characterization and nanothermometry.
