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.
Results
Showing 1 to 8 of 8 for “"Laser process"”.
-
Physical characteristics of laser processed hydrogenated amorphous silicon
… amorphous silicon films subjected to KrF excimer laser irradiation with a profiled beam in air leads to the formation of microstructures. The main objective of this research was to perform a comprehensive study in understanding this material in three different aspects: thermal, electrical, and …
-
Optimization of parameters of laser non-linear inclined cutting on stainless steel metal
The aim of this research is to develop a laser cutting process model that can predict the relationship between the process input parameters and resultant surface roughness; kerf width characteristics. The research conduct is based on the Design of Experiment (DOE) analysis. Response Surface …
-
Development of an optical nor gate transistor laser integrated circuit
The transistor laser combines the intrinsic switching property of a bipolar transistor and the coherent light output of a laser in a single device, making it uniquely suited for electro-optical integration. Furthermore, with the addition of waveguide structures, a transistor laser integrated …
-
Nanosecond Pulsed Laser Processing of Metals and Welding of Metal-Glass Nanocomposites
In this thesis, nanosecond pulsed lasers are used as the tools to generate microstructures on metal and glass. The applications of these structures are described too. The production of micro structures is demonstrated using diode-pumped solid state (DPSS) Nd:YVO4 lasers operating at wavelengths of …
-
Laser Processed Materials for Advanced Solar Devices
… 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 dark …
-
Tailoring Mechanical Properties and Porosity in Laser Powder Bed Fusion by Spatial Manipulation of Feedstock Composition
… versatility than many conventional manufacturing processes. Metal AM has revolutionized the design and production of rocket engines, enabled lightweight robotics and drones, and created heat exchangers that improve the efficiency of energy conversion systems. Typically, the feedstock for metal AM …
-
Proposta e sviluppo di nuovi strumenti informali per la didattica e la comunicazione delle Scienze Fisiche
… the synthesis of nanostructures by Pulsed Laser Deposition (PLD) and R.F. sputtering deposition and the tailoring of their structures by varying deposition parameters. We synthesized Cobalt oxide nanoparticles (NPs) by PLD and studied the influence of the deposition parameters (i.e. …
-
Laser Metallization And Doping For Silicon Carbide Diode Fabrication And Endotaxy
… fabrication of silicon carbide devices, a novel laser-based process is provided to direct metallize the surface of silicon carbide without metal deposition and dope in silicon carbide without high temperature annealing, as an alternative to the conventional ion implantation, and find applications …