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The development of miniature circuits that integrate single-photon sources, linear optical components, and detectors on a chip is one of the central research topics in quantum optics. Here plasmonic nanocircuits can play an essential role. So far the integration of quantum light sources into plasmonic circuits has been a challenge. In this work we present a quantum plasmonic nanocircuit driven by...
We demonstrate how a plasmonic nanoantenna can act as tunable resonant material that enhances third harmonic generation. We are able to quantitatively model the nonlinear spectrum with a nonlinear oscillator in position, shape, and amplitude.
An optical nanoantenna increases the nonlinear transient absorption signal of a single 40 nm gold nanodisc by an order of magnitude. In agreement with our calculations the signal is spectrally shifted to the antenna resonance.
We study third harmonic generation from arrays of plasmonic nanoantennas. Specifically, we investigate the size, gap, and material dependence of the conversion efficiency and find it to be a function of the plasmon resonance energies.
A tiny variation of a single metal nanoparticle's dielectric properties has only a weak influence on the light field. We demonstrate, using antenna concepts, how plasmon hybridization helps to increase the particle's influence.
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