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 12 of 12 for “"argon ion laser"”.
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Photosensitizer Loaded Contact Lenses As An Externally Stimulated Ophthalmic Drug Delivery System
Ophthalmic administration of drugs is primarily associated with the treatment of ocular diseases. 90% of the ophthalmic dosage forms are given topically. However, following the topical route, only 5% ocular bioavailability is achieved. The aim of my work is to address the problems associated with …
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Two-Photon Ionization of the Calcium 4S3D 1D2 Level in an Optical Dipole Trap
… mK). The dipole trap is formed by a large-frame argon ion laser focused to 20 microns into the center of the MOT. This laser runs single-line at 488 nm with a maximum power of 10.6 watts. These parameters result in a trap of 125 mK for calcium atoms in the 4s3d 1D2 state. The 488 nm light also …
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Creating a three dimensional holographic movie
… out on the ability to create a three-dimensional holographic movie. Holograms were written on VRP-M emulsion film with the green line of an Argon-Ion laser. The type of hologram write setup favored was a reflection hologram, due to its artistic capabilities. The illusion of a floating image …
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Temperature and strain dependence of fluorescence in praseodymium-doped silica optical fibre
… lifetime technique. These fibres had a Pr3+-ion concentration of 700 ppm and lOOOppm, the latter of which was co-doped with Al+3 at a concentration of 4000 ppm. The Pr3+ ion were excited with light from an argon-ion laser, centred at a wavelength of 488 nm. Two fluorescence wavelengths that …
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Properties and applications of the photorefractive material Ce:KNSBN
… those of Cu:KNSBN crystal.<br/><br/>The diffraction efficiency from the CeiKNSBN crystal is affected by the applied electric field. The applied field increases the response rate of the grating formation and enhances the diffraction efficiency. There exists an optimum applied field and grating …
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Biolithography : selective joining using antibody-antigen reactions
Biolithography is a contribution to the field of Solid Free Form Fabrication. Part production is based on selective joining using antibody- antigen reactions, where the selectively is based on the thermal sensitivity of such proteins. Antibodies and antigens can be chemically immobilized to a …
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Photoresist modeling for 365 nm and 257 nm laser photomask lithography and multi-analyte biosensors indexed through shape recognition
Photomasks used in projection lithography systems require higher resolution and uniformity to continue scaling semiconductor devices to smaller dimensions. The lithography process for photomask manufacturing takes many hours to expose millions of individual circuit features into a photoresist. …
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Impurity induced Raman scattering in alkali halides
… NaCl containing silver and copper impurities. An argon ion laser, tandem double monochromator, and photoelectric detection were used for the measurements. Raman scattering from the second hamonics of the high frequency U center localized mode has been measured in KBR:D-, KBR:H-, KI:H-, and KI:D- …
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Raman scattering from the hydroxyl ion in alkali halides
… scattering has been observed from the hydroxyl ion in NaCl, KCl. and KBr crystals. The measurements were made using an argon ion laser as a light source and a tandem double monochromator with photoelectric detection. The crystals were cleaved and mounted in such a way that the directions and …
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A fractal analysis of premixed turbulent flames
… investigated over a range of turbulence conditions. For this purpose a turbulent combustion rig was designed and built in which the turbulence intensity and scale could be independently varied by means of a set of grids. The relative turbulence intensity varied from 0.5 to 8.6 times the laminar …
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Capillary electrophoresis instrumentation and applications for the analysis of neural systems
Capillary electrophoresis (CE) separations for the analysis of the chemically-complex environment of the nervous system have been demonstrated to be an effective tool in neuroscience. The inherent scaling laws of CE allow for the analysis of low-volume samples at high separation efficiencies which …
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Effiziente Erzeugung verschränkter Photonenpaare
Efficient Generation of Entangled Photon-Pairs The first experiments with correlated photons have been performed in the context of EPR-Bell experiments on the realistic and local properties of quantum mechanics. The source used there produced pairs of polarization entangled photons from a 2-photon …