Related Experiment Video
Updated: Jul 7, 2026

07:39
Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
Published on: July 21, 2018
Simple model for the observed plasmon conical radiation interference patterns in a kretschmann configuration
Applied Optics
|February 28, 2008
Summary
Researchers developed a simple model for multiple-scattering images obtained with a scanning plasmon optical microscope. This model accurately reproduces experimental data, advancing surface irregularity analysis.
Area of Science:
- Optics
- Materials Science
- Surface Science
Background:
- Previous studies presented experimental results from a scanning plasmon optical microscope (SPOM) in Kretschmann configuration.
- Measurements included angular distribution of conical radiation and detection of multiple-scattering images.
Purpose of the Study:
- To develop and validate a simple model for analyzing multiple-scattering images generated by SPOM.
- To compare the model's predictions with experimental data for surface irregularities.
Main Methods:
- Utilized experimental data from previous SPOM measurements.
- Developed a simplified theoretical model for multiple-scattering image formation.
- Compared model predictions with experimental angular distribution and image data.
Main Results:
- The developed model successfully reproduced experimental data.
- Excellent agreement was found between the model and the measured multiple-scattering images.
- The study validates the model for analyzing surface features.
Conclusions:
- A simple model effectively explains multiple-scattering images in SPOM.
- The model provides a valuable tool for characterizing surface irregularities using plasmon optics.
- Further refinement of the model could enhance nanoscale surface analysis capabilities.
Related Concept Videos
Interference and Diffraction
Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
Standing Waves in a Cavity
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:

