Global ETD Search
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Showing 1 to 4 of 4 for “"picocavities"”.
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Transient Optical Picocavities Within Coupled Plasmonic Nanostructures
… suggestive of possible picocavity formation. Picocavities are transient atomic scale features on the metal surfaces which further confine fields (effective volume <1 nm3) with strong field gradients that locally alter the rules for vibrational scattering efficiency. These can alter the …
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Controlling and Understanding Atomic-Scale Dynamics within Plasmonic Nanogaps
… resulting in blinking emission phenomena such as picocavities and plasmonic flares. Picocavities are fleeting narrow-band spectral lines attributed to transiently forming metallic adatoms that confine light to a <1 nm3 volume, inducing stronger SERS from a nearby single molecule. Flares are …
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Plasmonic Sensing via Surface-Enhanced Spectroscopies
… robust coverage of the metal film. I show that ‘picocavities (atomic protrusions from the gold surface) can be observed and studied at room temperature. A key finding is the discovery and characterisation of new ‘flare modes’ which are millisecond increases in light intensity, shown to likely …
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DNA nanotechnology for light-emitting plasmonic applications
DNA nanotechnology for light-emitting plasmonic applications - Sara Rocchetti. The development of plasmonic nanocavities allows for the direct observation of light-matter interactions at the nanoscale. Collective oscillations of electrons (SPPs) at a metal-dielectric interface confine light into …