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Updated: Sep 29, 2025
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Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
Published on: January 3, 2016
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Nonlinear Forced Response of Plasmonic Nanostructures
Kobi Frischwasser1, Kobi Cohen1, Shai Tsesses1
1Technion-Israel Institute of Technology, Haifa, Israel.
Physical Review Letters
|March 25, 2022
Summary
Researchers explored unique nonlinear interactions using optical surface waves and dark nonlinearity. They achieved direct access to nonmodal plasmons in thin metal films, paving the way for advanced nanophotonic devices.
Area of Science:
- Photonics and Nanotechnology
- Nonlinear Optics
- Surface Physics
Background:
- Optical surface waves enable sensitive nonlinear interactions by confining light.
- Understanding modal-nonmodal state pairs in surface plasmons is crucial for advanced optical control.
Purpose of the Study:
- To investigate the physics of modal-nonmodal state pairs of short-range surface plasmons.
- To demonstrate nonlinearly mediated direct access to nonmodal plasmons using dark nonlinearity.
- To explore applications in on-chip nanophotonic devices.
Main Methods:
- Utilizing "dark nonlinearity" (a nonradiating nonlinear source).
- Controlling and observing the nonlinear forced response of modal-nonmodal plasmon pairs.
- Studying short-range surface plasmons in thin metal films.
Main Results:
- Unraveled the complex physics of modal-nonmodal state pairs.
- Achieved nonlinearly mediated direct access to nonmodal plasmons.
- Demonstrated this in a lossless regime.
Conclusions:
- The study provides a novel method for accessing nonmodal plasmons.
- Findings can be generalized to various surface waves and nonlinear optical phenomena.
- Opens possibilities for on-chip, nonlinearly controlled nanophotonic devices.
