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 9 of 9 for “"IR detector"”.
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Data compressive paradigm for spectral sensing and classification using electrically tunable detectors
… of the algorithmic spectrometry in the mid-IR sensing regime using spectrally tunable quantum dots-in-a-well (DWELL) IR detector without employing any spectral filters; (2) further demonstration of the spectral-classification capability of tunable DWELL IR focal-plane array (FPA), again …
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Mid-IR type-II InAs/GaSb nanoscale superlattice sensors
… of mid-wavelength infrared radiation (MWIR) is very important for many military, industrial and biomedical applications. Present-day commercially available uncooled IR sensors operating in MWIR region (2-5μm) use microbolometric detectors which are inherently slow. Available photon …
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Sensitive and high-precision rovibrational spectroscopy of molecular ions relevant to astronomical and quantum chemistry
… structure. Astronomers and theorists require accurate and precise laboratory measurements of rotational and rovibrational transition frequencies, which is particularly challenging for molecular ions. This is because ions are generated in small quantities within laboratory discharges, which …
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Defect investigations in InAs/GaSb type-II strained layer superlattice
… carrier lifetimes, the origin of the traps must first be understood. In this work, several key suspect causes of the "killer" defect were evaluated. A commonly explored suspect in literature, the interfaces, was studied using time-resolved photoluminescence for three different samples. This …
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Mechanism and Application of a Heterogeneous Catalytic Hydrogen-deuterium Exchange Reaction for Polyolefins
… (1H-NMR) and Fourier transform infrared (FTIR) spectroscopy. A size exclusion chromatography (SEC) instrument equipped with an IR detector was used to analyze the deuterium concentration within the LLDPE polymer as a function of molecular weight. Small angle neutron scattering (SANS) was …
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Stress and damage assessment in woven composite materials by means of thermoelastic stress analysis
… Experimental techniques are therefore required to assess the severity of stress concentrations and damage.<br/>TSA is an infrared (IR) technique which uses the thermoelastic effect to obtain measurements related to the stresses within a material. The non-contacting nature of TSA make it …
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Development of antenna-coupled metal-insulator-metal diodes for infrared detection
The long-wavelength infrared (LWIR) band between 7 and 14 µm is significant for thermal imaging purposes because it coincides with the blackbody radiation peak of the human body and a low absorption window in the earth’s atmosphere. Also, at 10 µm wavelength, the earth’s terrestrial radiation is …
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Characterization of, and novel architectures for, strained-layer superlattice infrared photodetectors
The current generation of infrared photodetectors, used in imaging and sensing applications, are predominantly made of an expensive II-VI material, HgCdTe (mercury cadmium telluride, MCT). A viable alternative class of materials, the III-V type-II superlattices (T2SLs), have been actively studied …
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Fabrication and Characterization of Optoelectronics Devices Based on III-V Materials for Infrared Applications by Molecular Beam Epitaxy
… attracting intensive research effort due to their applications in optical communication, remote sensing, spectroscopy, and environmental monitoring. The novel semiconductor lasers and photodetectors structures and materials investigated in this thesis cover the spectral range from 1.3µm to 12µm. …