Дисертації з теми "Ink layer"
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Jacobs, Clayton Jeffrey. "Influence of catalyst ink mixing procedures on catalyst layer properties and in-situ PEMFC performance." Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/22932.
Повний текст джерелаLutey, Adrian Hugh Alexander <1986>. "High-Speed Laser Processing of Thin Single and Multi-Layer Films." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5741/.
Повний текст джерелаTaddia, Sara <1986>. "Effect of Laser Shock Peening on Fatigue Crack Propagation of Aeronautical Structures." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/7130/.
Повний текст джерелаAscari, Alessandro <1974>. "Giunzione mediante laser di materiali difficili, ibridi ed a struttura cellulare." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6358/.
Повний текст джерелаThis dissertation concerns LASER-based joining and welding applications characterized by non-conventional prerogatives. The work is divided into three main topics: LASER joining of hybrid cellular-structured materials, with particular attention to aluminum foam sandwiches and foam-cored tubes, short-pulse LASER micro welding of high carbon steels and high power density continuous wave LASER welding of structural steels. The first topic investigates the role of LASER in joining hybrid components characterized by an external dense skin and an internal foam core. In particular the possibility of achieving both the fusion welding of the skin and the restoration of the cellular structure at the welding interface is assessed and the main guidelines concerning an integrated LASER welding - LASER heat treatment processing cycle are suggested. The second topic deals with the application of a low-power nanosecond pulsed LASER source in welding high carbon steels. The study points out that an accurate selection of pulse-related parameters allows to achieve sound micro-joints characterized by a penetration between 20 and 200 microns. These results point out the possibility to consider the construction of integrated LASER manufacturing cells in which, with the same low-cost source and on the same workpiece positioning, welding, cutting, marking and texturing processes can be performed. The study is completed by the investigation of the possibility to carry out a LASER post welding heat treatment for annealing the eventual hardened zones occurring in the welded material. The last topic deals with high power density LASER welding of carbon steels: by exploiting a high brilliance fiber source, capable of achieving 60 MW/cm^2, high penetration weld beads were obtained. By means of Design of Experiment techniques the role of radiation power, welding speed and beam focal position is assessed and several considerations were made concerning the influence of this kind of process on hot cracks formation.
Molesini, Ambra <1980>. "Meta-models, environment and layers: agent-oriented engineering of complex systems." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2008. http://amsdottorato.unibo.it/930/.
Повний текст джерелаSato, Taku. "Laser assisted ink consolidation for Direct Write Component Fabrication." Thesis, University of Liverpool, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540068.
Повний текст джерелаКоротенко, Олена Володимирівна. "Технологічне забезпечення якості банкнот під час металографічного друку". Thesis, КПІ ім. Ігоря Сікорського, 2018. https://ela.kpi.ua/handle/123456789/21718.
Повний текст джерелаIntaglio printing is one of the basic methods for protection of the strict accounting documents, in particular banknotes, all over the world. The peculiarity of this printing method is the possibility to form the strokes with different ink layer thickness (up to 320 microns) on the prints. It provides identification of the authenticity of the strict accounting documents by the public, including visually impaired people. But there is the paucity of theoretical and practical developments regarding the intaglio printing. Thus, the determination of the principles of the ink layer formation and its dependence on the influence of technological parameters of the process to provide high quality of intaglio printing is an topical scientific and technical task. The dissertation is devoted to establish the regularities of the influence of the intaglio printing technological factors on the prints quality. The generalized hierarchical model of prints quality forming, based on a detailed analysis of professional literature and scientific sources, was developed. A group of quality indicators and the main technological factors that influence prints quality were determined for the generalized hierarchical model of prints quality forming. The phenomenological model of intaglio ink transferring was developed and a mathematical description of physical processes, occurring during intaglio ink transferring, was made. Thus, the basic technological parameters that influence the prints quality were determined. It was found that the most effective factors that influence the quality of the ink relief forming are the geometric parameters of the plate as well as the technological print parameters, such as print pressure and print speed. The model of intaglio ink penetration and its distribution during intaglio printing was created. It allowed to investigate how the pressure that acts throughout the printing contact can influence the ink penetration depth. The modeling of the influence of heat exchange processes and the inertia of the process on the intaglio ink layer formation was carried out. These models explained the cause of asymmetry of the cross-sectional shape of strokes obtained by the intaglio printing. The results of modeling are confirmed by experimental research which was carried out with using of the developed method of determination of the generalized quality index of intaglio printing. The determination of the index is based on surface profilometric and microscopic analyses as well as on organoleptic and visual analyses of prints. The method allowed to increase the objectivity of quality evaluating and detect the regularities of the influence of the technological process parameters on the intaglio prints quality parameters. Based on the experimental study results, it was recommended to use a printing plate with the engraved elements of a rectangular profile or trapezoidal profile with an angle of 75 degrees and the element width to depth ratio of more than 1.3 times. It was also recommended to use reduced printing speed and high pressure in printing nip. The correlation analysis of the dependence of the generalized quality index on technological factors was made. As a result, the ranking of the factors on the weight of their influence was carried out. These conclusions became the basis for the recommendations given to the NBU Banknote Printing and Minting Works. The recommendations were aimed at ensuring the quality of the intaglio printing which is produced by the plates made by direct laser engraving. The system of technological assurance of banknotes quality in the process of intaglio printing was developed. As a basis for the system, the developed software for determining of the dependence of the quality printing parameters on technological factors as well as the software for determining of the ink layer thickness were used. By using this system in the manufacturing it is possible to improve the autonomy of the prints quality control process and to normalize the reproduction.
Диссертация посвящена установлению закономерностей влияния технологических факторов металлографской печати на качество оттисков. Для выполнения работы были использованы профилометрические методы исследования поверхности образцов (механическая, оптическая профилометрия) микроскопические методы исследования поверхности и микротомальных срезов образцов; органолептическо-экспертный метод тактильной дискриминации образцов; экспертный анализ качества образцов. В результате работы была разработана обобщенная иерархическая модель формирования качества оттисков в процессе металлографской печати, разработан комплекс моделей зависимости качества оттисков от технологических факторов, экспериментально подтвержден характер зависимости формирования красочного рельефа от параметров печатной формы и факторов печатного процесса. Также в работе осуществлено моделирование влияния теплообменных процессов и инерционности процесса на процесс формирования красочного слоя и моделирования влияния профиля давления в печатном контакте и вида профиля гравированных элементов формы на процесс проникновения и распределение краски в структуре бумаги.
Stavrinou, Paul Nicholas. "A study of InP-based strained layer heterostructures." Thesis, University College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261711.
Повний текст джерелаBonifacio, Rafael Nogueira. "Desenvolvimento de processo de produção de conjuntos eletrodo-membrana-eletrodo para células a combustível baseadas no uso de membrana polimérica condutora de prótons (PEMFC) por impressão a tela." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-29082011-151940/.
Повний текст джерелаEnergy is a resource that presents historical trend of growth in demand. Projections indicate that future energy needs will require a massive use of hydrogen as fuel. The use of systems based on the use of proton exchange membrane fuel cell (PEMFC) has features that allow its application for stationary applications, automotive and portable power generation. The use of hydrogen as fuel for PEMFC has the advantage low pollutants emission, when compared to fossil fuels. For the reactions in a PEMFC is necessary to build membrane electrode assembly (MEA). And the production of MEAs and its materials are relevant to the final cost of kW of power generated by systems of fuel cell. This represent currently a technological and financial barriers to large-scale application of this technology. In this work a process of MEAs fabrication were developed that showed high reproducibility, rapidity and low cost by sieve printing. The process of sieve printing and the ink composition as a precursor to the catalyst layer were developed, which allow the preparation of electrodes for MEAs fabrication with the implementation of the exact catalyst loading, 0.6 milligrams of platinum per square centimeters (mgPt.cm-2) suitable for cathodes and 0.4 mgPt.cm-2 for anode in only one application step per electrode. The ink was developed, produced, characterized and used with similar characteristics to ink of sieve printing build for other applications. The MEAs produced had a performance of up to 712 mA.cm-2 by 600 mV to 25 cm2 MEA area. The MEA cost production for MEAs of 247.86 cm2, that can generate 1 kilowatt of energy was estimated to US$ 7,744.14 including cost of equipment, materials and labor.
Mosiadz, Mariusz. "Inkjet printing of buffer and superconducting layers for YBa₂Cu₃O₇₋x coated conductors." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610415.
Повний текст джерелаNaes, Benjamin E. "Elemental Analysis of Glass and Ink by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) and Laser Induced Breakdown Spectroscopy (LIBS)." FIU Digital Commons, 2009. http://digitalcommons.fiu.edu/etd/207.
Повний текст джерелаDi, Felice Marco <1980>. "Cross-layer optimizations in multi-hop ad hoc networks." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2008. http://amsdottorato.unibo.it/915/.
Повний текст джерелаChoi, Woo-Young. "MBE-grown long wavelength InGaAlAs/InP laser diodes." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/34061.
Повний текст джерелаIncludes bibliographical references (leaves 107-116).
by Woo-Young Choi.
Ph.D.
Crosnier, Guillaume. "Nanodiodes laser hybrides InP sur Silicium injectées électriquement." Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCC225.
Повний текст джерелаConfronted with the challenge of the interconnect bottleneck, microelectronics industry must develop a new technology for data transfer over inter- and infra-chip distances. Based on the demonstrated performance for long distances, optical interconnects are right now the most studied solution to take up to this challenge. If data transfer through optical interconnects can benefit from the developed technologies for silicon photonics, active components are still lacking maturity. One of the critical points that needs to be addressed is the development of an ultrasmall, low-power, energy-efficient laser source with high bandwidth. During this PhD, we proposed a new design of hybrid InP on SOI nanolaser relying on a 1D rib Photonic Crystal (PhC) cavity. This new architecture allows us to efficiently inject electrical current in high quality factors optical cavities coupled to silicon waveguides circuitry. In this work, we first looked at the conception of nanolasers by carrying out the required electrical and optical simulations. This allowed us to define a design solving the problem of electrical injection, a necessary step for the use of that kind of components. We also developed the technology needed for their fabrication by limiting us to processes that are CMOS-compatible in terms of temperature. These developments led to the first demonstration of electrically-pumped nanolasers fully integrated on silicon waveguides. Those nanolasers emitting around 1. 55um were operated in continuous regime with threshold values of 100 uA at a voltage of 1 V
Fu, Liwei. "Laser curing of inks for plastic electronic applications." Thesis, University of Liverpool, 2014. http://livrepository.liverpool.ac.uk/2005999/.
Повний текст джерелаTefft, John. "The Study of Coating and Ink Penetration into Coating Structures Using a Confocal Laser Scanning Microscope." Fogler Library, University of Maine, 2007. http://www.library.umaine.edu/theses/pdf/TefftJ2007.pdf.
Повний текст джерелаAgrawal, Ambuj. "Implementation of Application Layer Protocol for an Active RFID System." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/34961.
Повний текст джерелаMaster of Science
Borowiec, Andrzej Haugen Harold Kristen. "Ablation and micromachining of INP with femtosecond laser pulses /." *McMaster only, 2004.
Знайти повний текст джерелаLutti, Julie. "Optical properties of InP/AlGaInP quantum dot laser heterostructures." Thesis, Cardiff University, 2005. http://orca.cf.ac.uk/56016/.
Повний текст джерелаAl-Ghamdi, Mohammed Saad. "Optoelectronic properties of InP AlGaInP quantum dot laser diodes." Thesis, Cardiff University, 2009. http://orca.cf.ac.uk/54948/.
Повний текст джерелаMladen, Stančić. "Model toplotnih svojstava štampanih odjevnih predmeta." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2016. http://www.cris.uns.ac.rs/record.jsf?recordId=96217&source=NDLTD&language=en.
Повний текст джерелаУ дисертацији су представљена истраживања утицајних параметарадигиталне штампе на топлотна својства одјевних предмета, при чему сукао параметри процеса штампе испитани утицаји различитог бројананоса боје у штампи и различите тонске покривености. Одштампаниузорци подвргнути су испитивањима топлотних карактеристикаштампаних текстилних материјала. На бази анализе изабранихпараметара развијен је модел топлотних својстава штампаних одјевнихпредмета који има посебан значај за предвиђање топлотно физиолошкеудобности одјеће током употребе.
Olivier, Laurent. "??tude des propri??t??s physiques du Sr[indice inf??rieur 0,9]Nd[indice inf??rieur 0,1]Cu0[indice inf??rieur 2] en couches minces d??pos??es par ablation laser puls??" Mémoire, Universit?? de Sherbrooke, 2014. http://savoirs.usherbrooke.ca/handle/11143/76.
Повний текст джерелаCakmak, Bülent. "Fabrication and characterisation of InP and GaAs based optoelectronic components." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322354.
Повний текст джерелаFarmer, Corrie David. "Fabrication and evaluation of In0.52Al0.48As/In0.53Ga0.47As/InP quantum cascade laser." Thesis, University of Glasgow, 2000. http://theses.gla.ac.uk/6883/.
Повний текст джерелаShakourian, Gelareh. "Enhanced De-inking and Recyclability of Laser Printed Paper by Plasma-Assisted Fiber Coating." Thesis, Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/10572.
Повний текст джерелаCALLIGER, OLIVIER. "Etude de l'integration optoelectronique et photonique sur inp : laser-mesfet et laser-convertisseur fm->am." Paris 6, 1994. http://www.theses.fr/1994PA066517.
Повний текст джерелаCaverhill, James Ross. "Investigation into the use and effects of a Q-switched Nd:YAG laser for the removal of ink from paper." Thesis, Northumbria University, 2004. http://nrl.northumbria.ac.uk/1608/.
Повний текст джерелаTrejos, Tatiana. "Evaluation of the Evidential Value of the Elemental Composition of Glass, Ink and Paper by Laser-Based Micro-Spectrochemical Methods." FIU Digital Commons, 2012. http://digitalcommons.fiu.edu/etd/755.
Повний текст джерелаTakeda, Yoshikazu, Keiji Fujita, Naoteru Matsubara, Naoki Yamada, Satofumi Ichiki, Masao Tabuchi та Yasufumi Fujiwara. "Layer structure analysis of Er δ-doped InP by x-ray crystal truncation rod scattering". American Institute of Physics, 1997. http://hdl.handle.net/2237/7024.
Повний текст джерелаKlaime, Kamil. "Laser à blocage de modes à base de boîtes quantiques InAs/InP pour les télécommunications optiques." Phd thesis, INSA de Rennes, 2013. http://tel.archives-ouvertes.fr/tel-00905711.
Повний текст джерелаMusaev, Omar Wróbel Jerzy. "UV laser assisted processing of InP at different ambient conditions with variable number of pulses and fluences." Diss., UMK access, 2006.
Знайти повний текст джерела"A dissertation in physics and telecommunications networking." Advisor: Jerzy Wrobel. Typescript. Vita. Title from "catalog record" of the print edition Description based on contents viewed Nov. 1, 2007. Includes bibliographical references (leaves 185-190). Online version of the print edition.
Raja, Sandeep. "The systematic development of Direct Write (DW) technology for the fabrication of printed antennas for the aerospace and defence industry." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/14930.
Повний текст джерелаYip, Raymond Yew-Fai. "Growth, characterization and design of InP-based strained-layer multiple quantum wells for optical modulator devices." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0015/NQ46642.pdf.
Повний текст джерелаSubedi, Kiran. "Elemental Analysis of Printing Inks Using Tandem Laser- Induced Breakdown Spectroscopy and Laser Ablation Inductively Coupled Plasma Mass Spectrometry." FIU Digital Commons, 2015. http://digitalcommons.fiu.edu/etd/2263.
Повний текст джерелаHazell, John Frederick. "Dielectric-enhanced quantum-well intermixing in [lámbdha] = 1.55 [micron]m InGaAsP/InP laser structures /." *McMaster only, 2000.
Знайти повний текст джерелаBennett, Brian R. (Brian Robert). "Molecular beam epitaxial growth and charcterization of mismatched InGaAs and InAlAs layers on InP." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/33483.
Повний текст джерелаElias, Georges. "Epitaxie des boîtes quantiques InAs/InP(001) de hautes performances pour les applications laser." Rennes, INSA, 2009. http://www.theses.fr/2009ISAR0018.
Повний текст джерелаInAs quantum dots grown on InP substrate are attractive for optoelectronic devices working at 1. 55 µm used in long haul telecommunication network. This PhD work concerns the formation of QD by molecular beam epitaxy on InP (001) substrates. Such substrate orientation is largely used in industry for device elaboration; however the formation of QD on it appears complex. In a first part the trend of QD structural characteristic changes versus growth parameters are reviewed and discussed in the frame of a classical nucleation and growth model. We show as a function of nanostructure size, a shape change from wires to quantum dots. We evidence the key role of the arsenic pressure on this transition. Calculations based on Tersoff analytical expression of the nanostructure energy show that the shape change can be related to the différence of the surface energy of their facets. In the second part of this work the growth on misoriented InP(001) substrates is investigated. Alter optimization of arsenic pressure during growth and substrates miscut direction, a high density (9 1010 QD/cm2) of small quantum dots has been achieved on InP(001). Further investigations allow us to achieve QD laser on InP (001) vicinal substrates with a threshold current density as low as 141 A/cm2
GUICHARDON, ANTOINE. "Caracterisation et modelisation du courant de fuite d'un laser ingaasp/inp a ruban enterre." Paris 11, 1995. http://www.theses.fr/1995PA112238.
Повний текст джерелаMustaffa, Muhammad Ubaidah Syafiq. "Alternative Uses of CZTS Thin Films for Energy Harvesting." Doctoral thesis, Università degli studi di Trento, 2021. http://hdl.handle.net/11572/315176.
Повний текст джерелаTeixeira, Ana Cristina Coelho Dal Rio. "Estudo da halitose em pacientes com tonsilite cronica caseosa, tratados por criptolise com laser de 'CO IND. 2'." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/309198.
Повний текст джерелаTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas
Made available in DSpace on 2018-08-08T17:35:33Z (GMT). No. of bitstreams: 1 Teixeira_AnaCristinaCoelhoDalRio_D.pdf: 10054525 bytes, checksum: 9e44ad7f8a52711069574871543224a6 (MD5) Previous issue date: 2007
Resumo: Halitose é um sintoma constrangedor com grande impacto social. Afeta milhões de pessoas, no mundo todo, que gastam muitos recursos em produtos na tentativa de obter a melhora do hálito. Uma abordagem científica da halitose justifica-se, uma vez que esta diminui a qualidade de vida e pode ser indicativa de doenças que necessitam de diagnóstico e tratamento específico. Inicialmente, foi elaborado um protocolo de avaliação da halitose baseado na literatura e na experiência pessoal, com o objetivo de minimizar custos, evitar exames desnecessários e orientar o diagnóstico. A segunda etapa do trabalho consistiu na mensuração objetiva do hálito (através da técnica de Halitometria dos Compostos Sulfurados Voláteis) em uma população com Tonsilite Crônica Caseosa (TCC), pois esta apresenta íntima relação com a queixa de halitose. O perfil halitométrico dos portadores de TCC ainda não havia sido descrito. Observou-se que a presença do cáseo é um fator preditivo de halitometria anormal nessa população. Na terceira etapa, foi estudado o impacto da criptólise por coagulação com laser de CO2 em indivíduos portadores de TCC e queixa de halitose. A técnica demonstrou ser segura e bem tolerada, e os valores das halitometrias foram normalizados após o tratamento, em virtude da diminuição da formação de cáseos
Abstract: Halitosis is a very constraint symptom with a significant social impact. It is estimated that halitosis affects millions of people and these people regularly spend resources in products in order to improve their halitus. The study of halitosis in a scientific approach is justified once halitosis causes social restriction, decreases life quality and can be an indication of serious diseases that need diagnosis and specific treatment. Initially, a halitosis proposal for assessment protocol was elaborated based on the literature and on personal experience, with the objective of minimize costs, avoid unnecessary procedures and orientate diagnosis. The second part was the mensuration of halitosis (through the Volatile Sulphur Compounds Halitometry) in a population with Chronic Caseous Tonsillitis (CCT), since this disease is strongly related to the halitosis complaint. The halitometry profile in patients with CCT had not yet been described. In this study it was observed that caseum presence is a predictive factor for abnormal halitometry. On the third part, the impact of CO2 laser cryptolysis by coagulation in patients with CCT and halitosis complaint was studied. The technique using CO 2 laser ablation demonstrated to be safe, well tolerated, and halitometry values became normal after treatment, due to the decrease in caseum formation
Doutorado
Ciencias Biomedicas
Doutor em Ciências Médicas
Armistead, C. J. "Far-infrared laser spectroscopy of neutral and negatively charged shallow donors in GaAs and InP." Thesis, University of St Andrews, 1987. http://hdl.handle.net/10023/14167.
Повний текст джерелаRoss, Anthony J. III. "Laser Machining and Near Field Microwave Microscopy of Silver Inks for 3D Printable RF Devices." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6944.
Повний текст джерелаLamponi, Marco. "Lasers inp sur circuits silicium pour applications en telecommunications." Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00769402.
Повний текст джерелаLiu, Neng. "Sur l’origine de l’interdiffusion de puits quantiques par laser uv dans des heterostructures de semi-conducteurs iii-v." Thèse, Université de Sherbrooke, 2014. http://savoirs.usherbrooke.ca/handle/11143/5291.
Повний текст джерелаParanthoën, Cyril. "Croissance et caractérisations des boites quantiques InAs sur substrat InP (113) B pour la réalisation d'un laser émettant à 1. 55um." Rennes, INSA, 2001. http://www.theses.fr/2001ISAR0014.
Повний текст джерелаGrigorieff, Peter Nikolaus. "Electron microscopy of interfaces and thin buried layers in the InGaAs/InP system grown by MOVPE." Thesis, University of Bristol, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386162.
Повний текст джерелаParaskevopoulos, Anagnostis-Alexandros. "Modélisation et étude expérimentale du comportement dynamique des lasers InP/InGaAsP de structure "Buried Ridge Stripe" (BRS)." Paris 11, 1988. http://www.theses.fr/1988PA112189.
Повний текст джерелаThe object of this thesis is the study and optimization of the high speed modulation performances of InP/ InGaAsP "Buried Ridge Stripe" (BRS) lasers. A "small signal" electric model has been developed, which takes into account all the parasitic elements of this structure represented by a distributed network of resistances and capacitances, calculated from the physical and technological structure parameters. In the active region vicinity the distributed network has been defined by a voltage calculation using the finite element method. Precise "small signal" Frequency response measurements of BRS lasers in the 0-8GHz band are then presented. A good agreement has been obtained between the measured and calculated characteristics. In a second part some solutions for the improvement of the BRS lasers modulation performances are proposed : weak contact resistivity, which minimizes the parasitic elements values. Bandwidths higher than 8GHz have been obtained in this way. - Short cavity lasers, optical power increase, which improve the intrinsic modulation characteristics. A systematic study of the electric insulation by Fe implantation in n-doped InP layers has been performed in order to improve the electric confinement in the BRS laser structure. We have, thus been able to define the optimal Fe implantation conditions for high resistivity (p > 107 n cm) in a large voltage zone (± 4V)
Waddicor, David Alan. "Aerosol in the tropical tropopause layer." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/aerosol-in-the-tropical-tropopause-layer(c68a4252-15dc-4a96-a890-0156719b3a9f).html.
Повний текст джерелаGenest, Jonathan. "Interdiffusion de puits quantiques contrôlée par irradiation laser excimère pour l'intégration de composants photoniques." Thèse, Université de Sherbrooke, 2008. http://savoirs.usherbrooke.ca/handle/11143/1824.
Повний текст джерелаSchulz, Wolfgang-Michael [Verfasser]. "InP/AlGaInP Quantenpunkte - Design, Epitaxie und Charakterisierung von Halbleiter-Quantenpunkt-Bauelementen für Laser und Einzelphotonenquellen / Wolfgang-Michael Schulz." München : Verlag Dr. Hut, 2011. http://d-nb.info/1013526716/34.
Повний текст джерела