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 “"short-wave infrared"”.
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Fluorescent materials for short-wave infrared imaging
… shifted toward the use of light of longer wavelengths. Fluorescence imaging in the shortwave infrared (SWIR, 1000 - 2000 nm) spectral region mitigates the negative effects of light attenuation and benefits from a general lack of tissue autofluorescence.
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Si-based Germanium-Tin (GeSn) Emitters for Short-Wave Infrared Optoelectronics
… bandgap emission of Ge1-xSnx structures for the short-wave infrared (SWIR) wavelength range (between 1.5 to 3 µm). The photoluminescence (PL) emissions from the bandgap of Ge1-xSnx films were investigated and a direct bandgap Ge1-xSnx was demonstrated for the first time based on the careful …
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Syntheses of biocompatible luminescent nanocrystals for visible and short-wave infrared imaging applications
… luminescent nanocrystals for visible and short-wave infrared (1-2 [mu]m, SWIR) imaging applications. Quantum dots (QDs) have been promising fluorescent probes for biomedical imaging due to their high quantum yield (QY), narrow photoluminescence spectra, and excellent photostability. …
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Surface plasmon enhanced fluorescence for biological imaging : from visible to short-wave infrared
Fluorescence imaging offers high spatio-temporal resolution, low radiation dosage exposure, and low cost among all the available imaging modalities, for example, magnetic resonance imaging, computerized tomography and positron emission tomography. Imaging probes of high emissivity and …
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Characterizing Organic Coatings on Renaissance Bronzes with Short-Wave Infrared and Mid-Infrared Spectroscopy
… external reflection Fourier transform infrared spectroscopy (ER-FTIR) and fibre optic reflectance spectroscopy (FORS)—across the visible/near-infrared (VIS-NIR, ~400–1000 nm), short-wave infrared (SWIR, ~1000–2500 nm), and mid-infrared (MIR, ~2.5–25 μm) ranges. Twenty-six reference …
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Development of polymeric quantum dot ligands for biological imaging in the short-wave infrared
The short-wave infrared region (SWIR; 1000-2000 nm) has excellent properties for in vivo imaging: low autofluorescence, reduced scattering, and little light absorption by blood and tissue. However, broad adoption of SWIR imaging in biomedical research is hampered by the availability of versatile …
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Si-based Germanium Tin Photodetectors for Short-Wave and Mid-Wave Infrared Detections
… and inexpensive imaging system working in the infrared range keeps increasing for the last decade, especially for civil applications. Although several group IV materials such as silicon and germanium are used to realize detectors in the visible and near infrared region, they are not the …
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Development of in-situ radiometric inspection methods for quality assurance in laser powder bed fusion
… Optical Emission Spectroscopy (OES) and Short-Wave Infrared (SWIR) imaging radiometric inspection methods that infer the final material state in LPBF. The instruments’ signals are correlated with bulk and local part properties to evaluate prediction capabilities. A probability framework …
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Open-IRIS: Low Cost, Fully Open Source In-situ Infrared Inspection of Silicon
Short-Wave Infrared (SWIR) imaging has become a powerful and well-known technique over the last two decades for silicon inspection and imaging. Open-IRIS is a low-cost, fully open-source system for in-situ InfraRed Inspection of Silicon devices (IRIS). It is designed to lower the cost barrier for …
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Implementation and Analysis of 3-D Tomographic Reconstructions from Space-Based Imaging Platforms
… other emissions and reflections. The Atmospheric Waves Experiment (AWE) is a prime example for use of tomographic reconstruction techniques from an imaging space platform. AWE is designed for studying the OH-airglow layer and atmospheric waves (also called gravity waves) which cause emission …
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Development of a Multispectral VIS-SWIR Imaging Modality for Cutaneous Water Assessment
… inflammation. Diffuse reflectance imaging in the short-wave infrared (SWIR) spectrum is an effective method for quantitatively mapping relative cutaneous fluid content. Unlike the visible and near infrared spectra, the SWIR spectrum exhibits strong water absorption and relatively weak melanin …
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Soil Salinity Study in Northern Great Plains Sodium Affected Soil
… capture spatially correlated variation, 2) the short wave infrared (1.5 -2.29 μm) and near infrared (0.75-0.90 μm) were very sensitive to soil salinity; 3) EC prediction model using all 3 season (spring, summer and fall) images was better on state wide validation dataset compared to individual …
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Assessing Coastal Plain Wetland Composition using Advanced Spaceborne Thermal Emission and Reflection Radiometer Imagery
… 16 October 2005), covering the visible to the short-wave infrared region (0.52-2.185υm). We included GIS data layers for soil survey, topography, and presence or absence of water in a logistic regression model that predicted the location of over 78% of the wetlands. While this was slightly less …
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Applying Rotation-Equivariant Deep Learning to Cloud and Road Segmentation in Satellite and Aerial Imagery
… cloud-climate interactions and calibrating microwave radiometers. Many existing state-of-the-art cloud detection algorithms require multispectral inputs and sometimes confuse clouds with snow, ice, or cold water. We propose deep learning models trained on visible-spectrum, long-wave infrared …
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Optimization of small molecule chemical tools for in vivo imaging
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
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Remote sensing for detecting rapid post-fire recovery as Groundwater-Dependent Ecosystems in the Cape Floristic Region
… the Kogelberg Nature Reserve. Sentinel-2A bands: Short-Wave Infrared (SWIR), NearInfrared (NIR), Red-edge, Red, Green, NDVI and Normalised Difference Wetness Index (NDWI) predictors and the potential wetland GDEs/non-wetland classes as the response. I tuned RF using five-fold repeated spatial …
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Evaluation Of Selected Spectral Vegetation Indices In Senescent Rangeland Canopy Using Landsat Imagery
<p>Grassland birds are diminishing more steadily and rapidly than other North American birds in general. The nesting success of some grassland bird species depends on the amount of nonproductive vegetation (NPV). To estimate NPV land managers are currently using the Robel pole visual obstruction …
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Novel structures for lattice-mismatched infrared photodetectors
… layer (with higher Sb content and longer cut-off wavelength).While nBn detector structures offer very low dark currents, it will sometimes be necessary to have a detector which is sensitive to very weak signals. In telecoms applications, avalanche photodiode (APD) structures are often used as …
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Multispectral Image Labeling for Unmanned Ground Vehicle Environments
… create a multispectral image cube. Visual, near infrared, shortwave infrared, and visible/near infrared polarimetric data are considered. The aligned images are then used to extract features which are fed to machine learning algorithms. The class list includes common materials present in rural …