Related Experiment Video
Updated: Aug 15, 2026
Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
Published on: July 21, 2018
Creating focused plasmons by noncollinear phasematching on functional gratings
H L Offerhaus1, B van den Bergen, M Escalante
1Applied Optics group, MESA Institute for Nanotechnology, University of Twente, The Netherlands. h.l.offerhaus@tn.utwente.nl
Abstract:
We report on the concept, generation, and first observations of focused surface plasmons on shaped gratings. The grating patterns are designed to realize focusing and directing through noncollinear phasematching. The plasmons are generated on patterned gold surfaces, and the plasmon propagation is observed using phase-sensitive photon scanning tunneling microscopy (PSTM) to extract the propagation pattern, direction, and wavelength.
