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 11 of 11 for “"Lasertechnologie"”.
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Atomare Zweielektronensysteme in intensiven Laserpulsen
Durch die stetige Weiterentwicklung der Lasertechnologie ist es in den <br>letzten Jahren möglich geworden, die fundamentale Wechselwirkung <br>hochintensiver Lichtfelder mit komplexen Atomen und Molekülen zu untersuchen. <br>Dabei haben Experimente im Tunnelbereich gezeigt, <br>daß die …
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Adaptive Femtosekunden Quantenkontrolle chemischer Reaktionen in der flüssigen Phase
… dass im Rahmen dieser Arbeit mit Hilfe der fs-Lasertechnologie und der Technik der adaptiven fs-Quantenkontrolle Experimente durchgeführt wurden, die einen wichtigen Beitrag zu dem neuen Forschungsbereich der Femtochemie darstellen. Die Erweiterung dieser Technik auf die flüssige Phase …
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Entwicklung eines integrierten Managementsystems für technologieorientierte Forschungsinstitute
An analysis of Germany as a business location shows the enormous significance of reseach and development (R&D) as well as education and qualification, for securing technological capability and competitiveness on a global market. The expenditure for research and development (R&D expenditure) in …
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Pulsed Laser Deposition von Er:ZBLAN-Schichten für den Aufbau eines integrierten Wellenleiterlasers im grünen Spektralbereich
A production of laser active Er:ZBLAN thin films (1um) with pulsed laser deposition (PLD) on MgF2 substrates is presented in this dissertation. Er:ZBLAN films with low droplet density (<10 per 100x100um2) were produced with PLD for the first time. Optical properties (absorption- and emmision …
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Thermal and mechanical optimisation of diode laser bar packaging
Increasing the reliability of high power diode laser bars as a viable photon source in pumping and direct applications is necessary as increased reliability reduces costs and makes diode lasers more attractive for use. High stress levels and high thermal loads are the limiting factors for the …
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Abscheidung von Neodym-Phosphatglas mittels pulsed laser deposition zur Fertigung integrierter Wellenleiterlaser
An integrated waveguide laser can consist of a pump diode laser monolithically joined to a thin film deposited in front of a pump diode on a common mount. For this purpose, a material suitable for low-temperature processing and integration with optical and electronic components has to be …
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Ultrafast dynamics of melting and ablation at large laser intensities
This thesis contributes to the understanding of the ultrafast melting and ablation of solids irradiated at large laser intensities. Fundamental aspects of the ultrafast laser ablation of pure metals (Au, Al, Cu, Fe, W), such as laser-matter interaction, plasma formation, evaporation and melt …
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Histologische Untersuchung zur Auswirkung von Diodenlaserstrahlung auf humanes Fettgewebe in vitro : eine experimentelle Studie zur Laser-assistierten Lipoplastie (LAL)
BACKGROUND: Especially plastic surgical operations using flaps for reconstruction tend to require secondary operative corrections to reduce the redundant subcutaneous tissue. Further, adipose tissue accumulations in highly difficult regions of the human body are often a problematic surgical …
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Diodengepumpte Laserverstärker mit flachen Lasermedien
Pulsed Laser-Oscillators are limited to a maximum output power depending on their regime of puls duration and repetition rate. The use of amplifiers enable higher power levels. The present theses reports on the development of laser amplifiers with a flat laser media and a special hybrid resonator, …
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Verstärkung ultrakurzer Pulse mit Colquiriiten
Femtosecond laser systems find their application in science since the first generation of laser pulses with durations below 1ps and more and more also in industrial applications. For this development the change from laser active dyes to solid state media has been crucial. Titan saphir (TiSa) is the …
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Konturnahes Laserstrahlstrukturieren für Kunststoffspritzgießwerkzeuge
A comprehensive manufacturing process with which to produce flexible, large surface and precise complex structures on flat and curved surfaces was successfully developed based on near net 3D laser structuring and implemented in the form of a fully functional demonstrational machine. The single data …