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Showing 1 to 12 of 12 for “"NPoM"”.
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Spectroscopy and Electrochemistry of Nanometre-Scale Plasmonic Gaps
… the Nanoparticle-on-Mirror (NPoM). I utilise the extreme confinement of light by coupled plasmons to understand different electrochemical processes at the electrode/molecule interface and learn about ion diffusion and catalysis in a confined environment. Both electrochemistry …
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Light-induced modulation of DNA recognition by the Rad4/XPC damage sensor protein.
… reports that 6-nitropiperonyloxymethyl (NPOM)-modified DNA can be used to modulate the DNA binding of the Rad4/XPC DNA repair complex using light. This collection of work exhibits NPOM recognized by the Rad4 protein as a specific substrate and such specificity can be abolished by …
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Cavity Plasmonics - Exploring narrow-gap plasmonic coupled systems to boost, localize and exploit nanometric light -matter interaction
… stands the nanoparticle on mirror construct (NPoM) - a robust plasmonic cavity formed via self-assembly. It consists of a nanoparticle placed on top of an under- lying metal substrate separated by a nanometre thin spacer material. Plasmonic cavities have the ability to confine light beyond the …
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Ultrafast Ultra-confined Plasmon Phonon Interactions
… and is known as the NanoPar- ticle on Mirror (NPoM) structure. The first half of this thesis demonstrates the viability of using the coupling between confined plasmonic and acoustic modes as a sensitive nanomechanical probe. Initially this coupling allows us to discover the NPoM “bouncing mode” …
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The plasmonics of a nanosphere on a mirror substrate
… a spherical gold nanoparticle on a mirrored (NPoM) substrate. When this occurs, both the localised surface plasmons on the particle and propagating surface plasmons at both of the interfaces of the substrate can be excited. The reflectivity and permittivity of the substrate plays a key role in …
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Transient Optical Picocavities Within Coupled Plasmonic Nanostructures
… gap between a gold nanoparticle and gold mirror (NPoM), confine light beyond the free space diffraction limit. While these enhanced field intensities allow resolvable measurements of vibrational scattering from only a few hundred molecules, ensemble averaging destroys all information on individual …
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DNA nanotechnology for light-emitting plasmonic applications
… In this work, I use the NanoParticle-on-Mirror (NPoM) geometry to fabricate plasmonic cavities in a bottom-up fashion by simply drop casting gold nanoparticles on thin gold films. The existence of tightly confined optical modes enhances both electronic and vibrational transitions of the molecules …
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Light Coupling to Plasmonic Nanocavities
… of a popular NanoParticle (NP) on Mirror (NPoM, or patch antenna) structure were used, which localizes visible light in 3 dimensions to an area of contact between the NP and a Self-Assembled Monolayer (SAM), within a defined facet area. This enables strong Surface-Enhanced Raman Scattering …
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Molecular Optoelectronics in Plasmonic Nanocavities
… nanostructures: the nanoparticle-on-mirror (NPoM) geometry and monolayer aggregate (MLagg) films. These platforms enable the precise control of plasmonic fields at the nanoscale, facilitating the study of molecular behaviour under extreme confinement conditions. The thesis explores the …
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In-situ plasmon-enhanced characterization of optically accessible ultra-thin film ferroelectric devices
… the use of a innovative nanoparticle-on-mirror (NPoM) technique that uses gold nanoparticles as electrical contacts, providing both nano-sized electrodes and substantial optical enhancement in the biased region. This allows for the first accurate and non-invasive simultaneous optical and …
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Controlling and Understanding Atomic-Scale Dynamics within Plasmonic Nanogaps
… two gold surfaces in a nanoparticle-on-mirror (NPoM) structure, are able to confine light to nanoscale volumes and enhance optical fields by orders of magnitude. This enhancement allows a few hundred molecules placed in this gap, such as biphenyl-4-thiol, to be probed by techniques like …
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Plasmonic Sensing via Surface-Enhanced Spectroscopies
… junctions formed in the nanoparticle-on-mirror (NPoM) construct. The nanoparticle- on-mirror construct comprises of a single nanoparticle spaced above a flat gold film by a molecular spacer layer. Here the spacer layers are self-assembled monolayers (SAMs) which form a robust coverage of the …