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 20 of 33 for “"solid state lasers"”.
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Modelling high peak-power solid-state lasers
… Applications:UV through LWIR - Baltimore, United States in 2016 [1].;The final research chapter details the development of a temporal and spatially discrete, numerical model, for investigating the evolution of gain within an active medium, during the pumping period. Amplified Spontaneous Emission …
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Femtosecond pulse generation in solid-state lasers
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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Nonlinear optical frequency conversion of mode-locked all-solid-state lasers
… and implementation of robust diode-pumped solid-state mode-locked lasers as a platform for nonlinear optical frequency conversion experiments. One objective is to create an ultrashort-pulsed source that is tunable between λ= 600nm and λ= 700nm, since currently no other laser gain media …
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Stabilization of passively mode locked solid-state lasers by use of electronic feedback
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.
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Power and energy storage requirements for ship integration of solid-state lasers on naval platforms
The United States Navy's interest in high-energy lasers (HELs) dictates the need for further study into the propagation of laser light through different atmospheric conditions. Due to the amount of energy required to power these laser weapons systems and the limited amount of available energy …
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Holographic lasers
… thesis presents the development of CW adaptive solid state lasers which dynamically correct for phase distortions within their cavity by phase conjugation. A fibre based four-wave mixing scheme is investigated but no experimental evidence of any phase conjugation is observed.
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Optical and structural characterization of crystalline oxides for laser applications
The development of new solid-state lasers, especially those operating between 0.9 and 3.0 μm, has renewed general interest in the optical properties of rare-earth ions (Re3+) in crystalline oxides with garnet structure. At this purpose, the aim of this study concerns the optical and structural …
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3 GHz Yb-fiber laser based femtosecond sources and frequency comb
Many applications require femtosecond lasers of high repetition rate. In the time domain, a higher repetition rate means more pulses in a fixed time period. For nonlinear bio-optical imaging in which photo-induced damage is caused by pulse energy rather than average power, increasing pulse …
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A preconditioned Newton-Krylov method for computing steady-state pulse solutions of mode-locked lasers
… Our solver is applicable to finding the steady-state solution of any nonlinear optical cavity with moderate self phase modulation, such as those of solid state lasers, and requires only a model for the round-trip action of the cavity. We conclude by proposing avenues of future work to improve …
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Laser produced vaporization of materials for use in mass spectroscopic analysis
The focused output of certain solid state lasers can be used to produce rapid surface heating and consequent vaporization in absorbing materials. For ordinary lasers it appears that the heating process can be adequately explained on the basis of a relatively simple classical thermodynamic …
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Photoluminescence Properties of Lanthanide doped Wide Gap Compounds of Interest in Photonics
… and technology, with applications ranging from solid state lasers for industry, medicine and environmental monitoring, to active optical fibers for telecommunication purposes and phosphors displays and lightning applications. Among the materials currently evaluated as host for lanthanide ions, …
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Physics and Algorithms in Time of Flight Based Computational Imaging
… advanced electronics hardware like femtosecond lasers, and Single Photon Avalanche Photodiode(SPAD) detectors for the automatic calibration project and software tools meant for machine learning in Python. For optical ultrasound measurement, I will use relatively simple hardware like solid state …
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Engineering J-aggregate cavity exciton-polariton devices
Research efforts in solution-based dye lasers and organic light-emitting devices (OLEDs) have led to advances in materials engineering and fabrication technology, propelling the field of organic solid-state photonics. Active areas of photonic research in organic systems include solid-state lasers …
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Design and development of distributed feedback transistor lasers
… date, all of these devices operate as multi-mode lasers without any type of wavelength selection or stabilizing mechanisms. Stable single-mode distributed feedback diode laser sources are important in many applications including spectroscopy, as pump sources for amplifiers and solid-state lasers, …
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Stabilization techniques and silicon-germanium saturable absorbers for high repetition rate mode-locked lasers
… monolithic integration of passively mode-locked solid-state lasers at highest repetition rates has been prevented by Q-switching instabilities and the lack of integrable saturable absorbers to date. In this thesis we demonstrate in theory and experiment that active feedback electronics …
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Ultrafast Transient Absorption and Multi-Wave Mixing Spectroscopies in the Extreme Ultraviolet and Soft X-RAY Regimes
… researchers to observe and manipulate electronic states within their natural attosecond, femtosecond, and picosecond timescales, thus providing a deeper understanding of the electronic processes that underpin structural changes, reaction pathways, and energy transfer in complex systems. By …
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Development and application of saturable absorbers to femtosecond solid-state laser mode-locking
… stability and reliability of ultrashort pulse lasers, making them more useful in many applications. These versatile devices can be grown both epitaxially with molecular beam epitaxy and non-epitaxially using RF sputtering. In this thesis, the development and application of both types of …
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Powers scaling and nonlinear frequency conversion of single-frequency lasers based
… a strategy for power-scaling diode-end-pumped solid-state lasers based on Nd:YLF operating on the 1.053 µm line whilst retaining, efficient, single-frequency, diffraction limited output, the characteristics of low power operation. This strategy reduces the effects of energy transfer …
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Integration von Diodenlasern in modulare Hochleistungs-Nd:YAG-Laser
Diode pumped solid state laser are well known, due to their high average power compared to lamp pumped systems. Still, they show disadvantages by means of thermo mechanics and design complexity. Where lamp pumped rod systems got two pump lamps per high power head, the same rod has to be pumped …
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