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The unique properties of plasmonic Fano resonances have drawn extraordinary attention owing to their potential for interesting applications in biochemical sensing, slow light devices, near-field enhancement, and active plasmonics. Recent experiments have demonstrated that Fano resonances can be generated from a plasmonic nanocluster (nano-blossom) due to the destructive interference of the superradiant...
The optical waveguide structures, such as, photonic crystal fibers, plasmonic, and hybrid plasmonic waveguides, gain their extensive applications in communication, signal processing, integrated optics, and biophotonics. Advanced numerical methods with high efficiency and accuracy are required to determine propagation modes and to optimize geometrical and material parameters. An efficient mixed finite...
Graphene is a real 2D material with one atomic thickness. It has drawn increasing interests in many research subjects. Active plasmonics in graphene is an emerging field that allows manipulation and external control of light confined in a graphene-based structure. Broad tunability, fast modulation speed, extremely high field confinement, and low optical loss are advantages when comparing to traditional...
We demonstrate a prototype 3D plasmon ruler based on coupled plasmonic oligomers in combination with high-resolution plasmon spectroscopy, rendering the retrieval of the complete spatial configuration of complex macromolecular and their dynamic evolution possible.
We demonstrate antenna-enhanced hydrogen sensing at the single-particle level. We place a single palladium nanoparticle near the tip region of a gold nanoantenna and detect the changing optical properties of the system upon hydrogen exposure.
We demonstrate the transition from isolated to collective optical modes in plasmonic oligomers. Specifically, we investigate the resonant behavior of planar plasmonic hexamers and heptamers with gradually decreasing the inter-particle gap separation.
Summary form only given. We introduce a novel sensor concept in the field of plasmonics, namely plasmon-induced transparency sensors. These sensors combine localized particle plasmon resonances with extremely small sensing volume with excellent sharp spectral resonances that show a good response to refractive index changes of the surrounding environment. The principle is based on the plasmonic analog...
We experimentally demonstrate a nanoplasmonic analog of electromagnetically induced transparency utilizing a stacked optical metamaterial. Specifically, we achieve a very narrow transparency window with high modulation depth due to nearly complete suppression of radiative losses.
We experimentally demonstrate a nanoplasmonic analog of electromagnetically induced transparency utilizing a stacked optical metamaterial. Specifically, we achieve a very narrow transparency window with high modulation depth due to nearly complete suppression of radiative losses.
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