Дисертації з теми "Infrared applications"
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Bone, Stewart A. "Analytical applications of infrared spectroscopy." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385929.
Повний текст джерелаLiu, Xianliang. "Infrared Metamaterial Absorbers: Fundamentals and Applications." Thesis, Boston College, 2013. http://hdl.handle.net/2345/3829.
Повний текст джерелаRealization of an ideal electromagnetic absorber has long been a goal of engineers and is highly desired for frequencies above the microwave regime. On the other hand, the desire to control the blackbody radiation has long been a research topic of interest for scientists--one particular theme being the construction of a selective emitter whose thermal radiation is much narrower than that of a blackbody at the same temperature. In this talk, I will present the computational and experimental work that was used to demonstrate infrared metamaterial absorbers and selective thermal emitters. Based on these work, we further demonstrate an electrically tunable infrared metamaterial absorber in the mid-infrared wavelength range. A voltage potential applied between the metallic portion of metamaterial array and the bottom ground plane layer permits adjustment of the distance between them thus altering the electromagnetic response from the array. Our device experimentally demonstrates absorption tunability of 46.2% at two operational wavelengths. Parts of this thesis are based on unpublished and published articles by me in collaboration with others. The dissertation author is the primary researcher and author in these publications. The text of chapter two, chapter five, and chapter seven is, in part, a reprint of manuscript being prepared for publication. The text of chapter three is, in part, a reprint of material as it appears in Physical review letters 104 (20), 207403. The text of chapter four is, in part, a reprint of material as it appears in Physical Review Letters 107 (4), 45901. The text of chapter six is, in part, a reprint of material as it appears in Applied Physics Letters 96, 011906
Thesis (PhD) — Boston College, 2013
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Physics
Kitchin, Matthew Roger. "Theory of semiconductor heterostructures for infrared applications." Thesis, University of Newcastle Upon Tyne, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300192.
Повний текст джерелаGeyer, Scott Mitchell. "Science and applications of infrared semiconductor nanocrystals." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62053.
Повний текст джерелаVita. Cataloged from PDF version of thesis.
Includes bibliographical references (p. 149-158).
In this work we study several applications of semiconductor nanocrystals (NCs) with infrared band gaps. In the first half, we explore the physics of two systems with applications in NC based photovoltaics. The physics of mixed films of CdTe and CdSe NCs is studied in chapter 2 as a model for NC based bulk heterojunction photovoltaics. We demonstrate that the presence of an active electron trap on the CdTe dramatically reduces the electron mobility in mixed films. The trapping state is linked to oxidation of the CdTe NCs. A cadmium oleate treatment is shown to reduced the oxidation rate. In chapter 3, we present a method to switch the carrier type of InAs NCs deposited in a thin film from p-type to n-type by the addition of cadmium. This provides a stable pre-deposition technique to control the NC carrier type and is a step towards pn homojunction based NC devices. We discuss the role that surface passivation and substitution doping may play in determining the carrier type. The second half explores the use of NCs for photodetector applications. Chapter 4 presents our efforts to move from a single pixel, proof of principle PbS NC infrared detector to a large area infrared imaging camera. A method to control the resistivity of the NC film through oxidation and re-treatment with ethanedithiol is presented. This allows for integration of our NC film with existing read out technology. The noise spectrum is shown to be dominated by 1/f noise and the dependence of the noise on the bias and channel length is determined. The detectivity is found to be determined by the carrier lifetime and dark current carrier density. In chapter 5, we demonstrate efficient UV-IR dual band detectors based on luminescent down conversion. In this design, NCs absorb UV light and re-emit the light in the infrared band of an InGaAs detector. The high quantum yields of infrared nanocrystals and unique absorption profile are shown to provide a significant advantage over organic dyes. The bandwidth of the detectors is measured and the effect of the down conversion layer on the spatial resolution is characterized.
by Scott Mitchell Geyer.
Ph.D.
Matthews, Amy L. "Applications of infrared fibers in temperature sensing." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/45909.
Повний текст джерелаAs attenuation in silica based fibers approaches its ultimate theoretical limit, investigation is in progress to develop new materials which exhibit lower losses than silica. These bulk materials could then be used to fabricate ultralow loss optical fibers which operate farther out in the infrared than do silica fibers. Such infrared fibers could be used in long, repeaterless telecommunications links, the transmission of CO and CO2 laser power, and in several sensing mechanisms. This thesis presents an overview of these new fibers and how they can be applied in noncontact temperature measurement. Fiber optic temperature sensing is thus reviewed, and an optical fiber pyrometer is discussed.
Master of Science
Chan, Kin Foong. "Pulsed infrared laser ablation and clinical applications /." Digital version:, 2000. http://wwwlib.umi.com/cr/utexas/fullcit?p9992765.
Повний текст джерелаBashir, Zareen. "Applications of near infrared spectroscopy in cerebral monitoring." Thesis, University of Manchester, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488409.
Повний текст джерелаAmrania, Hemmel. "Ultrafast Mid-Infrared Spectroscopic Imaging with Biomedical Applications." Thesis, Imperial College London, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.526408.
Повний текст джерелаCummings, Beth L. "Applications of infrared laser spectroscopy to breath analysis." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:5b6e0624-5982-457c-b13c-61484bace371.
Повний текст джерелаFullager, Daniel B. "Theory, Characterization and Applications of Infrared Hyperbolic Metamaterials." Thesis, The University of North Carolina at Charlotte, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10267303.
Повний текст джерелаHyperbolic Metamaterials (HMMs) are engineered structures capable of supporting lightmatter interactions that are not normally observed in naturally occuring material systems. These unusual responses are enabled by an enhancement of the photonic density of states (PDOS) in the material. The PDOS enhancement is a result of deliberately introduced anisotropy via a permittivity sign-change in HMM structures which increases the number and frequency spread of possible wave vectors that propagate in the material. Subwavelength structural features allow effective medium theories to be invoked to construct the k-space isofrequency quadratic curves that, for HMMs, result in the k-space isofrequency contour transitioning from being a bounded surface to an unbounded one. Since the PDOS is the integral of the differential volume between k-space contours, unbounded manifolds lead to the implication of an infinite or otherwise drastically enhanced PDOS. Since stored heat can be thought of as a set of non-radiative electromagnetic modes, in this dissertation we demonstrate that HMMs provide an ideal platform to attempt to modify the thermal/IR emissivity of a material. We also show that HMMs provide a platform for broadband plasmonic sensing. The advent of commercial two photon polymerization tools has enabled the rapid production of nano- and microstructures which can be used as scaffolds for directive infrared scatterers. We describe how such directive components can be used to address thermal management needs in vacuum environments in order to maximize radiative thermal transfer. In this context, the fundamental limitations of enhanced spon- taneous emission due to conjugate impedance matched scatterers are also explored. The HMM/conjugate scatterer system’s performance is strongly correlated with the dielectric function of the negative permittivity component of the HMM. In order to fully understand the significance of these engineered materials, we examine in detail the electromagnetic response of one ternary material system, aluminium-doped zinc oxide (AZO), whose tuneable plasma frequency makes it ideal for HMM and thermal transfer applications. This study draws upon first principle calculations from the open literature utilizing a Hubbard-U corrected model for the non-local interaction of charge carriers in AZO crystalline systems. We present the first complete dielectric function of industrially produced AZO samples from DC to 30,000 cm –1 and conclude with an assessment of this material’s suitability fo the applications described.
Grigoleto, Hayashi Juliano. "Wire Array Infrared Metamaterial Fibres: Fabrication and Applications." Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/17790.
Повний текст джерелаCowley, Richard D. "The clinical applications of near infrared spectroscopy (NIRS)." Thesis, University of Manchester, 2003. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488355.
Повний текст джерелаOppenheimer, Clive. "Volcanology from space : applications of infrared remote sensing." Thesis, Open University, 1991. http://oro.open.ac.uk/57337/.
Повний текст джерелаCuibus, Lucian <1982>. "Applications of infrared thermography in the food industry." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5559/1/Cuibus_Lucian_Tesi.pdf.
Повний текст джерелаCuibus, Lucian <1982>. "Applications of infrared thermography in the food industry." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5559/.
Повний текст джерелаMa, Shengli. "Mid-infrared and near-infrared vibrational circular dichroism new methodologies for biological and pharmaceutical applications /." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2008. http://wwwlib.umi.com/cr/syr/main.
Повний текст джерелаAtkinson, Samantha D. M. "Applications of vibrational microspectroscopy." Thesis, University of Reading, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368896.
Повний текст джерелаUrich, Artur. "Silica hollow core fibres for mid-infrared medical applications." Thesis, Heriot-Watt University, 2013. http://hdl.handle.net/10399/2946.
Повний текст джерелаPramanik, Goutam [Verfasser]. "Near InfraRed (NIR) nanoemitters for bioimaging applications / Goutam Pramanik." Ulm : Universität Ulm. Fakultät für Naturwissenschaften, 2014. http://d-nb.info/1049238583/34.
Повний текст джерелаMolavi, Behnam. "Near infrared spectroscopy : novel signal processing methods and applications." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/45353.
Повний текст джерелаNaji, Majid. "Applications of infrared waveguides and high-temperature storage units." Thesis, Université Laval, 2007. http://www.theses.ulaval.ca/2007/24438/24438.pdf.
Повний текст джерелаSun, Jingye. "'Over the THz Horizon' : thermal infrared technologies and applications." Thesis, Imperial College London, 2017. http://hdl.handle.net/10044/1/58865.
Повний текст джерелаBarker, Tom. "The military applications of near infrared spectroscopy in trauma." Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/6732/.
Повний текст джерелаDershowitz, Adam L. (Adam Lee) 1967. "A passive infrared ice detection technique for helicopter applications." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/44271.
Повний текст джерелаPetrovich, Marco. "Gallium lanthanum sulphide glasses for near-infrared photonic applications." Thesis, University of Southampton, 2003. https://eprints.soton.ac.uk/15477/.
Повний текст джерелаGodenir, Aurelien. "Novel dilute nitride semiconductor materials for mid-infrared applications." Thesis, Lancaster University, 2008. http://eprints.lancs.ac.uk/54640/.
Повний текст джерелаDuran, Joshua. "Silicon-Based Infrared Photodetectors for Low-Cost Imaging Applications." University of Dayton / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=dayton155653478017603.
Повний текст джерелаLiu, Qiankun. "SiGe photonic integrated circuits for mid-infrared sensing applications." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS166/document.
Повний текст джерелаMid-infrared (mid-IR) spectroscopy is a nearly universal way to identify chemical and biological substances, as most of the molecules have their vibrational and rotational resonances in the mid-IR wavelength range. Commercially available mid-IR systems are based on bulky and expensive equipment, while lots of efforts are now devoted to the reduction of their size down to chip-scale dimensions. The use of silicon photonics for the demonstration of mid-IR photonic circuits will benefit from reliable and high-volume fabrication to offer high performance, low cost, compact, lightweight and power consumption photonic circuits, which is particularly interesting for mid-IR spectroscopic sensing systems that need to be portable and low cost. Among the different materials available in silicon photonics, Germanium (Ge) and Silicon-Germanium (SiGe) alloys with a high Ge concentration are particularly interesting because of the wide transparency window of Ge up to 15 µm. In this context, the objective of this thesis is to investigate a new Ge-rich graded SiGe platform for mid-IR photonic circuits. Such new plateform was expected to benefit from a wide transparency wavelength range and a high versatility in terms of optical engineering (effective index, dispersion, …). During this thesis, different waveguides platforms based on different graded profiles have been investigated. First it has been shown that waveguides with low optical losses of less than 3 dB/cm can be obtained in a wide wavelength range, from 5.5 to 8.5 µm. A proof of concept of sensing based on the absorption of the evanescent component of the optical mode has then been demonstrated. Finally, elementary building blocs have been investigated. The first Bragg mirror-based Fabry Perot cavities and racetrack resonators have been demonstrated around 8 µm wavelength. A broadband dual-polarization MIR integrated spatial heterodyne Fourier-Transform spectrometer has also been obtained. All these results rely on material and device design, clean-room fabrication and experimental characterization. This work was done in the Framework of EU project INsPIRE in collaboration with Pr. Giovanni Isella from Politecnico Di Milano
BOBBA, SERENA. "Near-Infrared Spectroscopy for Freeze-Drying: Applications for Pharmaceuticals." Doctoral thesis, Politecnico di Torino, 2022. http://hdl.handle.net/11583/2957736.
Повний текст джерелаNdebeka, Wilfrid Innocent. "Characterization of thulium doped fiber for mid infrared laser applications." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6606.
Повний текст джерелаGoldberg, Mitchell David. "The generation and applications of a spectrally resolved infrared radiance climatology derived from the atmospheric infrared sounder." College Park, Md.: University of Maryland, 2009. http://hdl.handle.net/1903/9231.
Повний текст джерелаThesis research directed by: Dept. of Atmospheric and Oceanic Science. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
Park, Benjamin Alan. "Inductively coupled plasma induced type conversion of HgCdTe for infrared photodiode applications." University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2009. http://theses.library.uwa.edu.au/adt-WU2010.0003.
Повний текст джерелаJohnson, Jennifer Erin. "Remote sensing applications of uncooled long-wave infrared thermal imagers." Thesis, Montana State University, 2012. http://etd.lib.montana.edu/etd/2012/johnson/JohnsonJ0812.pdf.
Повний текст джерелаGolby, J. A. "Applications of carbon dioxide lasers in high resolution infrared spectroscopy." Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373667.
Повний текст джерелаAustin, David. "Studies of plasmonics and metamaterials for mid-infrared device applications." Thesis, University of Sheffield, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.522577.
Повний текст джерелаBreivik, Magnus. "Fabrication of mid-infrared laser diodes : for gas sensing applications." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elektronikk og telekommunikasjon, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-23859.
Повний текст джерелаGoluboviÄ, Boris 1967. "Study of near-infrared pumped solid-sate lasers and applications." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/10046.
Повний текст джерелаIncludes bibliographical references (leaves 114-121).
by Boris Golubovic.
Ph.D.
Cheng, Hok Yan. "Near infrared fluorescence probes : towards applications in fluorescence guided surgery." Thesis, University of Hull, 2017. http://hydra.hull.ac.uk/resources/hull:16529.
Повний текст джерелаAdonis, Marco Leroy. "An investigation and design of an infrared radiation heat profile controller." Thesis, Peninsula Technikon, 2002. http://hdl.handle.net/20.500.11838/1158.
Повний текст джерелаThis research outlines the development and design of an infrared radiation heating profile controller. The study includes both the theoretical aspects of the design process as well as giving an overview of the practical facets involved. The controller was subjected to comparative testing with a proportional control model, in order to observe its performance and validate its effectiveness. A need exists for these types of controllers and proved to be the motivation to embark on this investigation. Controllers of this nature that are commercially available either lacks the functionality of this unit or are too expensive to implement for research purposes. This unit was designed with cost effectiveness in mind but still meet the standards required of an industrial style controller. To this end the construction was completed using low cost and affordable electronic components. Heating profiles are necessary and useful tools for the proper processing of a host of materials. The controller developed in this research is able to within a fair degree of accuracy track a heating profile. The results confirm that this programmable control model to be a benefit and a valuable tool in temperature regulation. This means that intensive studies into the effects of infrared radiation on materials are now feasible. Research of this nature could possibly expand the application of infrared as a heating mechanism. Although tests were conducted on this controller, they are not meant to serve as an exhaustive analysis. The conclusions of these examinations do reveal the benefit of such a controller. More rigorous investigation is suggested as a subject for further study.
Aning, Jonathan. "Critique of fourier transform infrared microspectroscopy applications to prostate pathology diagnosis." Thesis, Cranfield University, 2010. http://dspace.lib.cranfield.ac.uk/handle/1826/5626.
Повний текст джерелаErickson, Brice Carl. "Multicomponent flow injection analysis and quantitative infrared emission spectroscopy : chemometric applications /." Thesis, Connect to this title online; UW restricted, 1988. http://hdl.handle.net/1773/8633.
Повний текст джерелаPanthani, Matthew George. "Colloidal Nanocrystals with Near-infrared Optical Properties| Synthesis, Characterization, and Applications." Thesis, The University of Texas at Austin, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3572875.
Повний текст джерелаColloidal nanocrystals with optical properties in the near-infrared (NIR) are of interest for many applications such as photovoltaic (PV) energy conversion, bioimaging, and therapeutics. For PVs and other electronic devices, challenges in using colloidal nanomaterials often deal with the surfaces. Because of the high surface-to-volume ratio of small nanocrystals, surfaces and interfaces play an enhanced role in the properties of nanocrystal films and devices.
Organic ligand-capped CuInSe2 (CIS) and Cu(InXGa 1-X)Se2 (CIGS) nanocrystals were synthesized and used as the absorber layer in prototype solar cells. By fabricating devices from spray-coated CuInSe nanocrystals under ambient conditions, solar-to-electric power conversion efficiencies as high as 3.1% were achieved. Many treatments of the nanocrystal films were explored. Although some treatments increased the conductivity of the nanocrystal films, the best devices were from untreated CIS films. By modifying the reaction chemistry, quantum-confined CuInSe XS2-X (CISS) nanocrystals were produced. The potential of the CISS nanocrystals for targeted bioimaging was demonstrated via oral delivery to mice and imaging of nanocrystal fluorescence.
The size-dependent photoluminescence of Si nanocrystals was measured. Si nanocrystals supported on graphene were characterized by conventional transmission electron microscopy and spherical aberration (Cs)-corrected scanning transmission electron microscopy (STEM). Enhanced imaging contrast and resolution was achieved by using Cs-corrected STEM with a graphene support. In addition, clear imaging of defects and the organic-inorganic interface was enabled by utilizing this technique.
Tan, Rendy Howe Choong. "Synthesis and characterisation of perfluorinated ianthanide complexes for near-infrared applications." Thesis, Queen Mary, University of London, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.522325.
Повний текст джерелаKhan, Saeed. "Silicon photonic devices for optical delay lines and mid infrared applications." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5961.
Повний текст джерелаPh.D.
Doctorate
Electrical Engineering and Computer Science
Engineering and Computer Science
Electrical Engineering
Buyuksalih, Gurcan. "Geometric and radiometric calibration of video infrared imagers for photogrammetric applications." Thesis, University of Glasgow, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284703.
Повний текст джерелаPetty, Christopher J. "The development and applications of near infrared Fourier transform Raman spectroscopy." Thesis, University of Southampton, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315498.
Повний текст джерелаBain, James R. P. "Near infrared tunable diode laser spectroscopy for aero engine related applications." Thesis, University of Strathclyde, 2012. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=17982.
Повний текст джерелаPang, Jing Sheng. "Engineered nanostructures for metal enhanced fluorescence applications in the near-infrared." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/43157.
Повний текст джерелаGambaryan, K. M., V. G. Harutyunyan, V. M. Aroutiounian, T. Boeck, O. Marquardt, and F. Schuette. "InAsSbP-based Quantum Dot Mid-Infrared Photodetectors: Fabrication, Properties and Applications." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35354.
Повний текст джерелаDurairaj, Revathy. "Langmuir-Schaefer films of a ferroelectric copolymer for infrared imaging applications." Kent State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=kent1334185809.
Повний текст джерела