pulsed laser deposition plasma
Pulsed laser deposition of electronic materials
... the plasma from a YBa2Cu307_s target irradiated with an excim er laser operating at 248 nm with an energy density o f 1 J/cm^, both under vacuum and at an oxygen pressure of 100 mTorr ...the plasma ...
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SrRuO3 growth on DyScO3 using soft lithographic patterning and pulsed laser deposition
... Pulsed laser deposition (PLD) is a method to grow epitaxial ...high-‐energy laser at a target in a vacuum chamber, for this assignment an ultra-‐violet (UV) laser was ...as ...
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Pulsed laser deposition growth of bismuth oxide superconductors
... Unfortunately, the in-situ films generally presented poor superconducting properties even in the 2212 film. This was attributed to oxygen deficiency of the 2212 films. Figure 7.10 shows resistance versus temperature of ...
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Modelling of laser ablation and reactive oxygen plasmas for pulsed laser deposition of zinc oxide
... In laser ablation, a high-power, pulsed laser interacts with a solid tar- get material, removing the surface layer of the target and turning it into an expanding plasma ...the laser ...
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Plasma Physics in Pulsed Laser Deposition of Hydrogen-free Diamond-like Carbon Films and Nanocomposites.
... Connection to existing substrate holder. x z[r] ...
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Pulsed laser deposition of thick multilayer garnet crystal films for waveguide laser devices
... the laser pulse has ended [200], and is predicted by gas-dynamic equations as shown in equation ...the plasma does not decrease indefinitely because of energy from ...the laser spot size is much ...
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Characterization of Ferroelectric NaxK1 xNbO3 System Films Prepared by Pulsed Laser Deposition
... with x changing from 0.2 to 0.8, pressed into pellets with diameter () of 15 mm and height (H) of 3 mm and then calcined at 1173 K for 14.4 ks. The pellets were sintered by spark plasma sintering (SPS) at 1323 K ...
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Magnetic and Transport Properties of Oxide Thin Films
... of pulsed laser deposition (PLD) derives from the laser material removal mechanism; PLD relies on the photon-material interaction to create an ejected plume of material from any ...The ...
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Design and Fabrication of Anti Reflection Coating by Pulsed Laser Deposition
... Pulsed laser deposition (PLD) is a thin film deposition (specifically a physical vapor deposition, PVD) technique where a high-power pulsed laser beam is focused inside a ...
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Selective Surface Sintering Using a Laser-Induced Breakdown Spectroscopy System
... LIBS has previously been used as a process-monitoring technique. Boué-Bigne [25] investigated segregation and decarburization using LIBS on polished high-carbon steel. Elemental maps of the surfaces were produced using ...
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Femtosecond pulsed laser deposition of silicon thin films
... the plasma plume and therefore evenly deposit over a substrate ...the plasma plume will be very narrow and thus form a very uneven film surface from one side to the other, where the majority of deposits ...
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Pulsed laser ablation and deposition of electronic materials
... the plasma arises from the density gradients in the plasma and the plasma is represented as a hot high pressure gas restricted to a small volume which is then rapidly permitted to expand in to a ...
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The deposition and characterisation of metallic thin films and magnetic multilayers prepared by pulsed laser ablation deposition
... Initial work focuses on the effects of the laser wavelength and the laser pulse temporal profile on the deposition rates of nickel and silver and the droplet numbers deposited on to film[r] ...
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Synthesis and pulsed laser deposition of lead-based cuprate superconducting materials
... onolayer deposition, the shutters were opened for durations o f betw een 30 and ...fter deposition, the films were cooled to 300°C w ithin 14 m inutes under the same oxygen pressure as used for ...
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Pulsed Laser Deposition of Thin Film Heterostructures
... projected laser spot on the target was a ...circular laser spot a new focusing lens was used to produce the TD thin films, note that the only TD thin film produced using the old focusing lens configuration ...
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Investigation of nanosecond and femtosecond pulsed laser deposition and application of some metal nanoparticle films
... EXPERIMENTAL SETUP AND CHARACTERIZATION TECHNIQUES 63 3.1 Laser and vacuum system for nanosecond and femtosecond pulsed laser deposition 63 3.1.1 Nanosecond PLD setup 64 3.1.2 Femtosecon[r] ...
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Pulsed laser deposition of electronic ceramics and analysis of the ablation plume
... Figure 6.1 shows a Log-Log plot of the integrated ion signal for individual ions as a function of laser fluence. No Bi+ ions were detected at these low fluences. This plot shows a linear power law dependence in ...
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Growth of nanolaminate structure of tetragonal zirconia by pulsed laser deposition
... Pulsed laser deposition (PLD) is quite easy to produce multilayer films composed of two or more materials. One of the major advantages is that the stoichiometry of the target can be retained in the ...
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Characterization upon electrical hysteresis and thermal diffusion of TiAl3Ox dielectric film
... that the films deposited by the pulsed laser deposition method have many defects, such as oxygen vacancies. The existence of these defects makes the mobility of the atoms of the films very active and ...
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Photonic waveguide engineering using pulsed lasers – A novel approach for non-clean room fabrication!
... Over the last 25 years has seen an unprecedented increase in the growth of phonic components based on semiconductor and solid-state lasers, glass and polymer based optical fibres, and organic LEDs. Emerging technology ...
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