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Plasmonic parametric resonance
Salandrino, Alessandro
Salandrino, Alessandro
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Abstract
We introduce the concept of plasmonic parametric resonance (PPR) as a novel way to amplify high angular
momentum plasmonic modes of nanoparticles by means of a simple uniform optical pump. In analogy with
parametric resonance in dynamical systems, PPR originates from the temporal modulation of one of the parameters
governing the evolution of the state of the system. As opposed to conventional localized surface plasmon
resonances (LSPR), we show that in principle any plasmonic mode of arbitrarily high order is accessible by
PPR with a spatially uniform optical pump. Moreover, in contradistinction with other mechanisms of plasmonic
amplification, the coherent nature of PPR lends itself to a more straightforward experimental detection approach.
The threshold conditions for PPR are analytically derived. Schemes of experimental realization and detection are
also discussed.
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This work is licensed under a Creative Commons Attribution 4.0 International License.
Date
2018-02-07
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American Physical Society
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Citation
A. Salandrino, Plasmonic parametric resonance. Physical Review B(R), vol. 97, no. 8, 2018.