Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"nanoantenna"”.
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Lightwave Electronics Based on Nanoantenna Networks
… thesis underscores the pivotal role of metallic nanoantennas as a scalable platform for lightwave electronics. It demonstrates how metallic nanoantennas enable control over light field-driven responses through rectification, resonance control (leading to lower peak fields required to operate), …
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Fabrication and applications of pillar bowtie nanoantenna arrays
… technique and applications of a pillar bowtie nanoantenna (p-BNA). We use different tools to fabricate our nanostructure, namely, electron lithographic tools, evaporator and plasma chambers. The theory of operation of the machines, especially electron beam lithography for higher resolution, …
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Self-Assembled Nanoantenna Enhance Optical Activity and Transport in Scalable Thin Films and Interfaces
… and agricultural applications. Self-assembled nanoantenna into random and ordered arrangements are advanced herein for optical and thermal enhancements in scalable thin film. An analytical approach to estimating the thermal dynamics of random arrangements of nanoantenna resulted in estimates …
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Self-Assembly of a Bio-Driven Single Molecule DNA Sequencer
… is achieved by the use of a plasmonic nanoantenna. Chapter 1 provides an overview of existing state of the art technologies and underlying theory behind plasmonic nanoantenna sequencing. Chapter 2 provides the materials and methods. Chapter 3 describes the embodiment of the plasmonic …
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Synthesis and kinetic processes in designed polymers
… of polymers through advanced MEMS design. Nanoantenna-based surface-enhanced infrared absorption is a powerful platform for the detection of biological and chemical species due to its ability to strongly enhance infrared absorption of a relatively narrow band of vibrational modes. However, …
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Functional gel for directed molecular transport and sensor applications
… the surface-enhanced infrared adsorption nanoantenna chip, which can be designed to selectively enhanced the signature organophosphate vibrational peak, was selected to be coated with the chemical gradient-imbedded hydrogel. The center of a radially distributed cationic center was aligned …
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Narrowband Photodetection in the Short-wavelength Infrared with a Plasmon-induced Hot Electron Device
… narrower spectral response than observed for nanoantenna-based devices. This approach opens up the possibility of plasmonic sensors with direct electrical readout, such as an on-chip surface plasmon resonance detector driven at a single wavelength.
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Plasmonic nanostructures and metamaterials for nanoscale light-matter interaction
… The band-edge lattice plasmon waves in plasmonic nanoantenna arrays have been studied and utilized for surface-enhanced Raman spectroscopy. Superchiral spectroscopy at the molecular level is demonstrated using a novel three-dimensional chiral metamaterial. Furthermore, surface-enhanced second …
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Infrared Energy Conversion in Plasmonic Fields at Two-Dimensional Semiconductors
… solutions to Maxwell’s equations guided metal nanoantenna design towards strong infrared localized surface plasmon resonance (LSPR). Excitation and damping dynamics of LSPR in heterostructures of noble metal nanoantennas and molybdenum- or tungsten-disulfide (MoS2; WS2) monolayers were examined …
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Pillar-supported plasmonic nanoantennas for optical nanotweezers and optical audio applications
… the nanometer-sized gaps of plasmonic bowtie nanoantennas (BNAs) are orders of magnitude larger than those of conventional optical tweezers. Accordingly, plasmon-enhanced gradient forces can both significantly relax constraints for microparticle manipulation and offer a route for improved …
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Optical Nanoantennas Integrated with 3D Microelectrode Arrays: Hybrid Photonic-Electronic Modalities for Nano-Bio Interfacing
… sensor, we introduced a tunable optical nanoantenna that is driven wirelessly by incident laser light (photons) to create a highly localized electric field capable of enhancing the photon scattering rate of nearby chemical bonds, a unique signature that provides a means to fingerprint the …
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Nanolaminated Plasmonics: from Passive to Active Nanophotonics Devices
… the concept of out-of-plane engineered nanoantenna structures is introduced, numerically calculated, and experimentally demonstrated. The nanolaminated MIM plasmonic structures show multiresonant plasmonic responses in the same antenna and each wavelength band can be tunable individually …
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METAL NANOMATERIALS: SYNTHESIS, DESIGN, AND APPLICATIONS
… using dielectric SiOx as an optical nanoantenna is a promising photocatalyst that can drive photonic chemical conversion with high efficiency.
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Fabrication and Optoelectronic Characterization of Nanoscale Resonance Structures
Resonance structures have long been employed by RF and microwave devices ranging from antennas, to wave guides. These resonance structures have exhibited an enormous amount of control over the wavelength selectivity, polarization, and directivity of the electromagnetic radiation which couples to …
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Novel Electromagnetic Scattering Models for Nano-Composites and Nano-Sensor Applications
… for a complex three-dimensional (3D) plasmonic nanoantenna in free space. Characteristic mode analysis (CMA) is used to provide physical insights to systematically optimize the nanoantenna’s shape, size, and material leading to ∼ 700 % near-field enhancement. Next, the high aspect ratio carbon …
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Development of novel series and parallel sensing system based on nanostructured surface enhanced Raman scattering substrate for biomedical application
… bimetallic backplane assisted resonating nanoantenna (BARNA) SERS substrate is demonstrated with the enhancement factor (EF) of 5.8 × 108 with 4.7 % relative standard deviation. By serial combination with optical focusing from nanojet effect, the nanojet and surface enhanced Raman …
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Plasmonic nanoantennas for multipurpose particle manipulation and enhanced optical magnetism
… in the nanometer-sized gaps of plasmonic nanoantennas are orders of magnitude larger than those of conventional optical tweezers. Accordingly, plasmon-enhanced gradient forces can both significantly relax constraints for microparticle manipulation and offer a route for improved …
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Plasmonic Nanostructures: Optical Nanocircuits, Tunable Charge Transfer Plasmons, and Properties of Fano Resonant Nanoclusters
… nanocircuits that tune the resonance of the nanoantennas at visible wavelengths. Series and parallel combinations of nanocircuit elements (nanocapacitors, nanoinductors and nanoresistors) can be realized by appropriately loading specific arrangements of dielectric, semiconducting and metallic …