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 15 of 15 for “"periodic nanostructures"”.
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Fabrication and electromagnetic applications of periodic nanostructures
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1988.
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Multilevel interference lithography--fabricating sub-wavelength periodic nanostructures
Periodic nanostructures have many exciting applications, including high-energy spectroscopy, patterned magnetic media, photonic crystals, and templates for self-assembly. Interference lithography (IL) is an attractive method for fabricating such structures, as it offers several advantages including …
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Flexible Fabrication of Multi-scale Integrated 3D Periodic Nanostructures with Phase Mask
Top-down fabrication of artificial nanostructures, especially three-dimensional (3D) periodic nanostructures, that forms uniform and defect-free structures over large area with the advantages of high throughput and rapid processing and in a manner that can further monolithically integrate into …
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On the development of a low-cost lithographic interferometer
… a technique for making one- and two-dimensional periodic nanostructures using interference of two coherent light beams. Despite their successes, the size, maintenance, and cost of interference lithography tools have prevented periodic nanostructures from being ubiquitous in academia and industry. …
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Self-assembly of silicon-containing triblock copolymer and terpolymers
… interest due to its ability to generate periodic nanostructures with a variety of morphologies. Compared to diblock copolymers that have been extensively studied to form the conventional morphologies such as spheres, cylinders, and lamellae depending on the block volume fraction, more …
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Theoretical Modeling of Polymeric and Biological Nanostructured Materials
Polymer coatings on periodic nanostructures have facilitated advanced applications in various fields. The performance of these structures is intimately linked to their nanoscale characteristics. Smart polymer coatings responsive to environmental stimuli such as temperature, pH level, and ionic …
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Utilisation of Cellulose Nanocrystals for the Fabrication of Photonic Materials
… are the result of the interaction of light with periodic nanostructures. The same striking optical response can be obtained artificially by structuring materials on the same length scale. As an example, naturally derived cellulose nanocrystals (CNCs) can be self-assembled to form a helicoidal …
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Growth and characterisation of multifunctional nanocomposite coatings
… Fe-Ti-N and Fe-Ti-O-N, having in-situ formed periodic multiphase nanocolumnar microstructures, have been developed by a two-target reactive magnetron sputter deposition and nanoparticle-assisted electro-co-deposition processes. Advanced thin-film characterisation techniques, such as scanning …
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Progress in coherent lithography using table-top extreme ultraviolet lasers
… technology. Our capability to fabricate these nanostructures routinely for sure will impact the advancement of nanoscience. Apart from the high volume manufacturing in semiconductor industry, a small-scale but reliable nanofabrication tool can dramatically help the research in the field of …
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Grazing Incidence X-ray Scattering from Magnetic Thin Films and Nanostructures
… the structure of magnetic thin films and periodic nanostructures. The combined metal and metal oxide films have been chosen to clarify the effects of growth processing techniques in technologically important magnetic and magnetoresistive thin film materials, and have particular relevance …
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Topological photonic metasurfaces for light manipulation and strong light-matter interaction
… domain. A straightforward fabrication of on-slab nanostructures is advantageous for integration with various photonic on-chip devices. Last decade all-dielectric periodic nanostructures (photonic metasurfaces) boost a growth of novel optical technologies, from ultra-sensitive detectors to compact …
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Novel advancements in nanofabrication for photonic crystal applications
… has been limited by fabrication challenges. Periodic nanostructures must be patterned in high-index and crystalline material such as silicon over large areas (mm² to cm²) with reasonable throughput. These patterns also must be placed coherently over the entire area, and contain controlled …
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Selective transport properties in nanostructured materials
… to achieve two-dimensional materials with periodic nanostructures, our interest has extended to covalent organic frameworks (COFs) and their desalination properties. Through classical calculations, we show that COF membranes can achieve high salt rejection rate while enhancing the water …
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Simulation and control of dynamic directed self-assembly of nanostructures
… With significant progress in self-assembly of periodic nanostructures (such as monolayers), the focus is now shifting towards non-periodic structures. Control of various interaction force fields (electrostatic, Van der Waals, etc.) between the nanoparticles and external controls can result in …
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Design of bio-inspired texturing treatments, via high power ultra-short pulse lasers, of ferritic stainless steel surfaces that inhibit the formation of bacterial biofouling on tools for hospital use and in the food industry
… enables the generation of a variety of nanostructures, among which Laser-Induced Periodic Surface Structures (LIPSS) stand out. These quasi-periodic nanostructures consist of alternating ridges and valleys with a spatial period similar to or smaller than the laser wavelength used and an …