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Progress in the excitation of ‘dark-modes’ in plasmonic structures is reported. The interaction of vector beams possessing a spatially inhomogeneous polarization profile with plasmonic nanostructures provides an avenue to probe these resonances.
Here we report on the integration of metallic nanorods with the phase-change material Vanadium Dioxide (VO2). The change in its optical constants that accompanies the VO2 phase transition permits the modulation of the resonant frequencies of these dipoles. This technique will underpin the development of dynamically tunable optical antennas.
Optical antennas have garnered much interest from the optics community for their ability to manipulate light below the diffraction limit of conventional optics. This relatively new capability to transform light at a sub-wavelength scale has been applied to quantum source enhancement, infrared detection and solar cell design. This work aims to expand upon the range of optical antennas presented in...
A nano-scale inductor-capacitor circuit that resonates at optical frequencies is studied numerically. The results are modeled by a simple equivalent electrical circuit.
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