Hybrid thermo-physical modelling and experimentation of ultrafast laser-based fabrication of polycrystalline core-amorphous shell nitinol nanoparticles
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Experimental demonstration of optical speedup at transparency (OSAT) has been performed on a 1 mm long semiconductor optical amplifiers (SOA). OSAT is a recently proposed scheme that decreases the recovery time of an SOA while maintaining the available gai ...
A microscopic, theor., and exptl. description of an elementary solid state photoreaction, i.e. the dissocn. of a small mol. in a rare lattice is presented. The ingredients and results of mol. dynamics calcns. for the dissocn. of F2, Cl2, HI, and H2O mols. ...
Excimer Laser Ablation is a micro-machining method which has undergone an important breakthrough in the last twenty years. In contrast with most literature studies, dealing with Static Ablation, this PhD work focuses on the study of Scanning Ablation of po ...
Industrial laser precision machining is predominately based on pulsed Nd:YAG lasers operated at a wavelength of 1.06 µm in a free running pulse regime. The objective of this thesis work has been to investigate second and third harmonic generation for such ...
Frequency doubled Nd:YAG lasers represent an attractive alternative to other laser tools for many material processing applications, but frequency doubling with pulsed Nd:YAG lasers has been performed until now only with pulses of tens of nanoseconds. In ma ...
In order to improve the reliability of micro-spot welding of metal parts in production such as e.g. in electron guns for TV picture tubes, real-time information about the evolution of the welding process should be available to allow on-line modification of ...
A simple energy-grained master equation was used to model data on the multiphoton dissocn. of CF2HCl as a function of laser fluence and Ar bath-gas pressure. Information on energy transfer from vibrationally excited CF2HCl was obtained from an anal. of the ...