Related Experiment Video
Updated: Jun 22, 2026

Patterning via Optical Saturable Transitions - Fabrication and Characterization
Published on: December 11, 2014
Sub-wavelength patterning of the optical near-field
Abstract:
We report the sub-wavelength patterning of the optical near-field by total internal reflection illumination of a regular array of resonant gold nano-particles. Under appropriate conditions, the in-plane coupling between Localized Surface Plasmon (LSP) fields gives rise to sub-wavelength light spots between the structures. Measurements performed with an Apertureless Scanning Near-Field Optical Microscope (ASNOM) show a good agreement with theoretical predictions based on the Green dyadic method. This concept might offer a convenient way to elaborate extended optical trap landscapes for manipulation of sub-micrometer systems.
Related Concept Videos
Standing Waves in a Cavity
The de Broglie Wavelength

