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 9 of 9 for “"Q-switch"”.
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Grado de aclaramiento de tatuajes y eventos adversos, posterior a una sesión con láser q-switch
… de piel II y IV. Equipos utilizados laser Q-Switch Nd Yag 1064 (83.3%), láser Q-Switch Nd YAG 532(11.3%) y laser Q-Switch Rubí (4.1%). El aclaramiento posterior a la sesión de láser fue evaluado por dos evaluadores independientes, mostrando concordancia significativa (Kappa de 0.615, …
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Applications of programmable MEMS micromirrors in laser systems
… and their use as intracavity active Q-switch elements in solid-state laser systems, are investigated. The AVC scanning micromirrors are created through a multi-user fabrication process, with theoretical and experimental investigations undertaken on the influence of the AVC initial …
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Experimental characterization of Cr4+:YAG passively Q-switched Cr:Nd:GSGG lasers and comparison with a simple rate equation model
… and the laboratory performance of passively Q-switched microlasers. The laser rate equation model describes the development of a top hat gain distribution taking into account the excited state absorption of the passive Q-switch. The lasers examined are Cr:Nd:GSGG lasers passively Q-switched by …
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Design and investigation of the emission dynamics of a mode-locked SBS-laser oscillator
… of the SBS-mirror leads to a passive Q-switching and issues ns-pulse bursts with µs spacing. The pulse train parameters such as pulse duration, pulse spacing, pulse energy and number of pulses within a burst can be individually adjusted by tuning the pump parameters and the starting …
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Fully Integrated CMOS-compatible mode-locked lasers
… with repetition rates of 690MHz and 1.2GHz. Q-switched, Q-switch-mode-locked, and CW mode-locked laser operation was demonstrated, with the shortest pulse durations of 250fs. The smallest foot-print of one laser is 23.6mm x0.78mmx0.6mm. In addition, first-ever fully-on-chip CMOS-compatible …
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The development of steady State and lifetime fluorescence instruments for real time in situ aquatic chemistry measurements
… This board is used along with a 266 nm Q-switch laser, fast photomultiplier tube (PMT), and computer controlled monochromator to build a small fluorescence lifetime instrument. The instrument is tested with solutions of low concentration pyrene to demonstrate its ability to identify small, …
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LASER DIODE PUMPED ND: YAG SOLID STATE LASER FOR APPLICATIONS IN SECOND HARMONIC GENERATION
… and Gaussian distribution respectively. The Q-switched YAG laser properties, including the laser threshold, the output energy and the optical efficiency, are analyzed by using the Q-switched laser theory. Based on the theoretical design and consideration, an ES-pumped YAG laser is constructed …
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Novel techniques and materials for optical telecommunication systems
… mirrors were then used to passively Q-switch a variety of fibre lasers. Due to their broadband nature, Q-switching of lasers of significantly different lasing wavelengths was achieved (1064 and 1550nm). Pulse energies up to 10 µJ were obtained. This performance is directly comparable to …
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Development of a High Repetition Rate, Electro-optically Q-switched Ho:YAG Laser
… a high repetition rate, electro-optically Q-switched Ho:YAG laser capable of meeting the requirements for these applications, and as a result, investigate if it is theoretically capable of pumping an optical parametric oscillator. The basis of the research was built upon the development of a …