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.
Results
Showing 1 to 8 of 8 for “"Optical Antenna"”.
-
Optical Antenna Photovoltaics & Making Metallic Nano-rods
… that has not been widely explored is that of optical antennas. In 1972 Bailey et al.[1] explored scaling down of antenna technology to match the solar spectrum. A recent review was given by Lukas Novotny et al.[2], in which they outline the major hurdles as being the lack of reliable …
-
Frequency Selective Detection of Infrared Radiation in Uncooled Optical Nano-Antenna Array
… lithography steps. In this study, we designed an optical nano-antenna array based detector with narrow frequency band of operation. The structure consists of a two-element antenna array comprised of a perforated metallic hole array coupled with an underneath disk array which trap incident …
-
From elastic electrodes to fabric systems
… two fabric systems: a woven, three-dimensional optical antenna, and a knitted garment able to detect localized changes in skin temperature.
-
Luminescent Harnessing of 2D Transition Metal Dichalcogenide Excitons
… schemes offer a means to recover and enhance optical and electronic properties of newly fabricated monolayers. This thesis presents a novel surface treatment based on oleic acid (OA) ligands, which unlike previously reported schemes, is applicable to both sulphide and selenide TMDs. As …
-
Multi-Transceiver Free-Space-Optical Structures for Mobile Ad-Hoc Networks
… per-node throughput, we propose a novel &ldquo optical antenna &rdquo model that is tessellated with multiple free-space-optical (FSO) transmitter and receiver (transceiver) pairs that exploit spatial reuse of the shared medium and are capable of handling extremely high data rates using optical …
-
Growth, characterization and implementation of semiconductor sources of highly entangled photons
… of growth parameters, quantum dot morphology and optical properties. An unprecedented emission wavelength control with distributions as narrow as ± 1 nm is achieved, using four independent growth parameters: The GaAs infilling amount, the deposition sequence, the migration time and the Al …
-
Optical nano-antennas: Fabrication, characterization and applications
As optical counterpart of microwave antennas, optical nano-antennas are important devices for converting propagating radiation into confined/enhanced fields at nanoscale. The recent advances in resonant sub-wavelength optical antennas have now offered researchers a continuum of electromagnetic …
-
Scenario-based uncertainty quantification for deep space optical communications
… under uncertainty and explores the potential of optical communications to meet the future data requirements of deep space science missions. Currently, the Deep Space Network (DSN) relies solely on radiofrequency (RF) communications. As science-driven space exploration missions become more …