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 20 of 54 for “"excimer laser"”.
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Stretchable, multimodal, large-area sensor arrays fabricated using excimer laser photoablation technologies
… electrode layers and as in-situ masks for excimer laser photoablation. This approach reduces the number of processing steps and photomasks, is scalable for large-area arrays, and is adaptable for a variety of materials and designs. This novel process is used for interconnect and sensor …
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Design of a chemical sampling and analysis system using excimer laser ablation and quartz microcolumns
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
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An investigation of the fluorescence emitted by arterial intimas during irradiation by a XeCl excimer laser
Laser angioplasty of occluded arteries has been limited by the unacceptably high rate of vessel wall perforation. To overcome this limitation, fluorescence spectroscopy of arterial wall tissue has been proposed as a technique to discriminate between normal and atherosclerotic arteries and thereby …
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Οne year results using the customized therapeutic protocol (tt-prk) of the ivis excimer laser refractive suite
… (θεραπευτικό πρωτόκολλο cTen στη σουίτα iVis Laser®), συνοδευόμενο από ταυτόχρονη διασύνδεση κολαγόνου κερατοειδούς (πρωτόκολλο 18 mW x 5 λεπτά, Safe Cross® Ριβοφλαβίνη). Η αναδρομική μελέτη συμπεριέλαβε 13 μάτια με κερατόκωνο, 2 περιστατικά με θολερότητες στον κερατοειδή και 7 περιστατικά με …
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An attampt to measure the electron temperature of a Xenon Chloride excimer laser discharge plasma by Thomson scattering
… time a Xenon Chloride transverse discharge laser to the short, high power Nd:YAG pulse to within 5 ns. Attempts were made to determine the electron velocity distribution of the discharge plasma of this Xenon Chloride laser using the method of Thomson scattering. The Thomson scattering …
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Effect of Mitomycin C with different application method on rabbit corneal wound healing process after Excimer laser photortherapeutic keratectomy
… haziness and keratocyte proliferation after Excimer laser phototherapeutic keratectomy in rabbit. PTK was performed in both eyes of 18 New Zealand white rabbits using Technolas 217™. After laser removal of the epithelium(40 um depth with the optical zone 6.0mm), stromal ablation of 100 um …
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Laser Processed Materials for Advanced Solar Devices
… for a long time, and among these techniques, excimer laser crystallization has the merits in rapid and stable. In this PhD project, the objective of the excimer laser processing is to develop 1) crystallized a-Si:H thin film as a promising field & thermionic emission candidate, and 2) a novel …
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Laser processing of solution based antimony doped tin oxide thin films
… to conventional high temperature annealing, excimer laser processing can provide highly localized energy dissipation, and is an attractive technique to functionalise coated materials. Therefore the work presented in this thesis investigates the use of excimer laser processing to optimise the …
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Photolytic Laser-Induced Chemical Vapor Deposition for Aluminum Film Growth
… triethylaluminum (TEA) by a KrF (248 nm) pulsed excimer laser were investigated using optical emission spectroscopy, including time-resolved emission measurements. Position-resolved growth rate measurements were used to investigate film growth kinetics during photolysis of TMA using 248 nm light, …
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Annealing studies of detector materials for uncooled thermal imaging
… in the scene. In addition to the work on PST, excimer laser annealing of low-temperature deposited PZT has been investigated for use in a fully integrated detector fabrication process. Modelling has shown that the PZT could be heated preferentially to induce perovskite formation whilst the ROIC …
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Kr-F laser surface treatment of poly(methyl methacrylate), glycol-modified poly(ethylene terephthalate), and polytetrafluoroethylene for enhanced adhesion of Escherichia Coli K-12
… interaction. This study investigates Kr-F excimer laser(248 nm) surface modification of poly(methyl methacrylate), glycol-modified poly(ethylene terephthalate), and polytetrafluoroethylene and its effect on the adhesion of Escherichia Coli K-12 bacteria. These three polymers were chosen for …
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Carbon nanotube strain sensors with wide dynamic range fabricated on flexible substrates by novel processing techniques
… fabrication techniques have been fabricated. Excimer laser photoablation was used for simultaneous patterning of the CNT layer and the polyimide substrate. A transferring technique utilizing sacrificial etching was used for clear material transfer. Clear patterns free of CNT-polymer composites …
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The growth and characterization of III-V compound semiconductor materials by metalorganic chemical vapor deposition and laser photochemical vapor deposition
… deposition at lower temperatures, an ultraviolet excimer laser is used to assist in the growth of GaAs, motivated by the fact that the common MOCVD precursors such as trimethylgallium and arsine are absorbing in the ultraviolet region of the spectrum. Progress toward obtaining device quality …
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Langzeitergebnisse nach photorefraktiver Keratektomie zur Korrektur von sphärischen Hyperopien
Ziel dieser Studie war es, die Wirksamkeit des Excimer-Lasers bei der Behandlung sphärischer Hyperopien über einen Zeitraum von zwei Jahren hinaus zu untersuchen. Dazu wurden retrospektiv 57 Patienten bzw. 102 Augen in die Studie aufgenommen, die eine Hyperopie von nicht mehr als +6 dpt. aufwiesen. …
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Optical Processes in Xenon: Multiphoton Ionization and Ultraviolet Photodissociation of the Dimer Ion
… It is found that when an ArF and an XeF excimer laser are fired simultaneously, the electron density is enhanced by at least an order of magnitude due to a near resonance with the Xe 6p{ 1/2}(,0) level. The strong excitation of this state has allowed the measurement of its radiative …
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Dynamics of Melt-mediated Crystallization of Amorphous Silicon Films
… conclusions that were made regarding the pulsed-laser-induced melting-and-solidification behavior of a-Si films. In particular, it focuses on investigating the melt-mediated crystallization details that are associated with the a-Si films, which presumably do not contain preexisting microcrystal …
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Hydrogen surface wave plasma cleaning of the EUV collector
… industry standard of 193 nm light from an excimer laser has been manipulated through techniques such as multiple pattern or immersion lithography to reduce the wavelength and size of the features on the transistor. Going forward, a new technique, extreme ultraviolet (EUV) lithography, is …
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Thin film engineering for transparent thin film transistors
… studies as an investigation into photonic (excimer laser) processing of low temperature ZnO and IGZO thin films deposited by RF magnetron sputtering and/or by high target utilisation sputtering (HiTUS), to optimise the microstructure and electrical properties for potential use in thin film …
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The photophysics properties of lanthanide luminescent probes
… probes have been obtained by TRFA excited by excimer laser radiation (351 nm) using the total internal reflection fluorescence microscopy (TIRFM). The results indicate feasibility of using lanthanide luminescent probes for time-gated luminescence microscopy.
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