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Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
Published on: January 3, 2016
Symmetry breaking in plasmonic waveguides with metal nonlinearities
Arthur R Davoyan1, Ilya V Shadrivov, Yuri S Kivshar
1Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra, ACT, Australia. arthur.davoyan@gmail.com
Optics Letters
|March 16, 2011
Summary
We investigated nonlinear optical effects in plasmonic waveguides, revealing how metal nonlinearities cause mode bifurcations and symmetry breaking at critical powers.
Area of Science:
- Optics and Photonics
- Materials Science
- Nonlinear Dynamics
Background:
- Plasmonic metal film waveguides and couplers are key components in integrated optics.
- Understanding nonlinear optical effects is crucial for advanced photonic devices.
- Ponderomotive nonlinearities in metals can significantly influence light propagation.
Purpose of the Study:
- To investigate nonlinear effects in plasmonic metal film waveguides and couplers.
- To analyze the structure and dispersion of nonlinear plasmonic guided modes.
- To predict mode bifurcations and symmetry breaking phenomena.
Main Methods:
- Analysis of third-order optical response.
- Study of ponderomotive metal nonlinearities.
- Investigation of nonlinear plasmonic guided mode structure and dispersion.
Main Results:
- Predicted bifurcations and symmetry breaking of nonlinear modes.
- Demonstrated dependence of these phenomena on critical powers.
- Showcased the influence of structure dimensions on nonlinear mode behavior.
Conclusions:
- Nonlinear effects, driven by ponderomotive metal nonlinearities, are significant in plasmonic waveguides.
- Bifurcations and symmetry breaking of nonlinear modes are predictable outcomes.
- Device geometry plays a critical role in controlling these nonlinear optical phenomena.
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