Plasmon-enhanced four-wave mixing by nanoholes in thin gold films
Journal article, 2014

Nonlinear plasmonics opens up for wavelength conversion, reduced interaction/emission volumes, and nonlinear enhancement effects at the nanoscale with many compelling nanophotonic applications foreseen. We investigate nonlinear plasmonic responses of nanoholes in thin gold films by exciting the holes individually with tightly focused laser beams, employing a degenerated pump/probe and Stokes excitation scheme. Excitation of the holes results in efficient generation of both narrowband four-wave mixing (FWM) and broadband multiphoton excited luminescence, blueshifted relative to the excitation beams. Clear enhancements were observed when matching the pump/probe wavelength with the hole plasmon resonance. These observations show that the FWM generation is locally excited by nanoholes and has a resonant behavior primarily governed by the dimensions of the individual holes.

nanoholes

nanostructures

nanoparticles

metal-films

arrays

Author

Henning Hagman

Chalmers, Chemical and Biological Engineering, Molecular Imaging

Olof Bäcke

Chalmers, Applied Physics, Eva Olsson Group

Juris Kiskis

Chalmers, Chemical and Biological Engineering, Molecular Imaging

Fredrik Svedberg

Chalmers, Chemical and Biological Engineering, Molecular Imaging

Magnus Jonsson

Delft University of Technology

Fredrik Höök

Chalmers, Applied Physics, Biological Physics

Annika Enejder

Chalmers, Chemical and Biological Engineering, Molecular Imaging

Optics Letters

0146-9592 (ISSN) 1539-4794 (eISSN)

Vol. 39 4 1001-1004

Areas of Advance

Nanoscience and Nanotechnology (2010-2017)

Subject Categories

Nano Technology

DOI

10.1364/OL.39.001001

More information

Latest update

5/14/2018