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 11 of 11 for “"spectral tuning"”.
-
Post-growth spectral tuning of InGaAs/GaAs quantum dot infrared photodetectors
… discern target aircraft from decoy flares. Hyperspectral imaging describes the fusion of imaging and spectroscopy. These systems exhibit high spatial and spectral resolution, generally by dispersing different wavelengths onto a focal-plane array. Agricultural surveys, extraterrestrial exploration …
-
Post-growth spectral tuning of InGaAs/GaAs quantum dot infrared photodetectors
… discern target aircraft from decoy flares. Hyperspectral imaging describes the fusion of imaging and spectroscopy. These systems exhibit high spatial and spectral resolution, generally by dispersing different wavelengths onto a focal-plane array. Agricultural surveys, extraterrestrial exploration …
-
Crustacean phylogenetic systematics and opsin evolution
… systems suggest different mechanisms of spectral tuning and photoactivation compared to vertebrate systems. This dissertation research is focused on expanding our knowledge of opsin evolution in invertebrate systems, particularly from non-insect taxa. First, issues related to opsin …
-
Theoretical and experimental studies of optically pumped molecular gas lasers
… transitions in the infrared spectral region were studied experimentally and theoretically. A model was developed to predict the performance of such lasers and explore their potentials for energy and power scaling. This rate equation model was applied to explore the performance …
-
Structural and Spectroscopic Characterization of Modular Photoreceptors
… CBCRs regarding the molecular mechanisms of spectral tuning, photoconversion, and light signaling. A major part of my thesis work focuses on a far-red sensing CBCR from Anabaena cylindrica. I present the crystal structures captured in different light-absorbing states, revealing mechanistic …
-
Development and plasticity of the functional laminar mesoscale organization of the primary auditory cortex
… through the critical period for auditory spectral tuning, and on to mature adult circuitry. Furthermore, this dissertation explores how brief visual deprivation has the power to initiate compensatory, cross-modal plasticity mechanisms and restructure network circuitry in the adult auditory …
-
Molecular Evolution and Functional Characterization of the Visual Pigment Proteins of the Great Bowerbird (Chlamydera nuchalis) and Other Vertebrates
… garnered particular interest due to the broad spectral range among vertebrates and the importance of UV signals in communication. Chapter 2 investigates the evolutionary history of SWS1 in vertebrates with a view toward its utility as a phylogenetic marker. Chapter 3 investigates SWS1 evolution …
-
Reconfigurable Photonics based on Broadband Low-loss Optical Phase Change Materials
… platform. Devices including reconfigurable spectral filters with world record large spectral tuning range and metasurface deflectors are demonstrated.
-
Multispectral plasmon enhanced quantum dots in a well infrared photodetectors
… 1) High temperature operation, 2) Multispectral detection. There are two parts to this dissertation. In the first part, an alternate structure with an improved operating temperature and thicker active region is presented. Traditionally, DWELL detectors use InAs quantum dots embedded in …
-
Design and Characterisation of Hybrid Organic-Inorganic Materials for Luminescence Downshifting Devices
Spectral converters can enhance the performance of photovoltaic devices by converting incident sunlight into wavelengths that better match the spectral response of an attached PV cell, for example by converting UV to visible light through luminescence downshifting. Downshifting devices typically …
-
FABRICATION AND THERMAL ANALYSIS OF POLYIMIDE-BASED X-RAY MASKS AT THE SYNCHROTRON LABORATORY FOR MICRO AND NANO DEVICES, CANADIAN LIGHT SOURCE
… (CLS) is a DXRL laboratory with continuous tuning capabilities for spectrum and power of the synchrotron beam. X-ray mask fabrication is one of the most demanding sequences associated with the entire processing chain and has always constituted a bottleneck in the DXRL technology. In this …