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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 121 for “"Laser system"”.
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All-semiconductor High Power Mode-locked Laser System
… gain-coupled distributed-feedback (MS-GC DFB) lasers are discussed. A record speed of 180-GHz timing synchronization has been demonstrated using this device. An all-optical carrier synchronization (phase and polarization recovery) scheme from PSK (phase shift keying) data is proposed and …
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A stabilized master laser system for differential absorption LIDAR.
… and precise wavelength control of master diode lasers. This stabilization system design has a number of novel elements that work towards a robust and low-cost autonomous DIAL observatory. With two continuous wave optical wavelengths stabilized, a pulse is formed using an Acousto-Optic Modulator …
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A laser system for trapping and cooling of ⁶Li atoms
In this thesis, I designed and built a laser system for the trapping and cooling of ⁶Li atoms. The thesis starts explaining a theoretical background of the necessary laser frequencies for the realization of a Zeeman Slower and a 3D MOT. Next it describes the design of the laser system that makes …
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A chirped, pulsed laser system and magneto-optical trap for rubidium
… both the optical and mechanical aspects from laser diode assembly, tuning and stabilisation to the preparation and assembly of the vacuum system. The MOT construction forms the first goal of the project, the second was to develop a laser system capable of producing custom programmable, …
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A narrow linewidth diode laser system for strontium laser cooling applications
The diode laser system for laser cooling on the 1S 0 → 3P1 intercombination line of strontium discussed in this thesis allows us to cool and trap an atomic strontium sample to 15 muK. Samples in this temperature range are useful for the development of the next generation of atomic frequency …
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Frequency stability of a helium neon laser system with external cavity control
Many applications of gas lasers depend upon the extremely high spectral purity of their output signals. To fully exploit this remarkable spectral purity requires a high degree of frequency stabilization and laser mode control. In the past few years much effort has been expended in attempts to …
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A Sequentially Modulated Ruby Laser System for Transmitted and Scattered Light Dynamic Photoelasticity
Made available in DSpace on 2014-12-10T17:25:42Z (GMT). No. of bitstreams: 1 6808208.pdf: 3987782 bytes, checksum: b1b2dca733b57d2d43829cf85d16c453 (MD5) Previous issue date: 1967
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Fluorescence of contaminants in soil and groundwater using a time-resolved microchip laser system
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1998.
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A Mathematical Model of the Dynamics of an Optically Pumped Codoped Solid State Laser System
… of an optically pumped codoped solid state laser system. The model comprises five first order, nonlinear, coupled, ordinary differential equations which describe the temporal evolution of the dopant electron populations in the laser crystal as well as the photon density in the laser cavity. …
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Comparative Efficacy of MUS System vs Er:YAG Laser System in Reducing Bacterial Biofilms in Root Canals
… of biofilm removal using two advanced irrigation systems: the Multisonic Ultracleaning System (MUS) GentleWave® with the CleanFlow™ handpiece, and the erbium-doped yttrium-aluminum-garnet (Er:YAG) laser (LightWalker® Fotona) for Laser-Activated Irrigation (LAI). The modes used in LAI included …
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A Mathematical Model of the Dynamics of an Optically Pumped Four-Level Solid State Laser System
… of an optically pumped four-level solid state laser system. A general mathematical model that describes the spatial and temporal evolution of the electron populations in the laser rod as well as the development of the left and right traveling photon fluxes in the cavity is developed. The model …
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Distance support in-service engineering for the high energy laser
… anticipates moving to a shipboard high-energy laser program of record in the fiscal year 2018 and achieving an initial operational capability by 2020. The design of a distance support capability within the high-energy laser system was expected to assist the Navy in reaching this goal. This …
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High energy femtosecond fiber laser at 1018 nm and high power Cherenkov radiation generation
Two novel laser systems for ultrafast applications have been designed and built. For the seeding of a high energy cryogenically cooled Yb:YLF laser, a novel 1018 nm fiber laser system is demonstrated. It produces >35 nJ pulse energy and 5 nm spectral bandwidth. A double-cladd amplifier and an …
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Simultaneous cooling and trapping of 6Li and 85/87Rb
This thesis provides a summary of the laser system constructed in the Quantum Degenerate Gases Laboratory for laser cooling and trapping of 85/87Rband 6Li as well as of experiments that have been pursued in our lab to date. The first chapter provides an overview of the experimental focus of the QDG …
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Depletion, quantum jumps, and temperature measurements of ⁸⁸Sr⁺ ions in a linear Paul Trap
… describes the design and construction of two laser systems to probe the 674nm transition of ⁸⁸Sr⁺ ions in a linear Paul trap. The first laser system made use of a molecular transition in Iodine to stabilize the length of a Fabry-Perot cavity for laser locking. After constructing this laser, we …
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Controlling Laser High-Order Harmonic Generation Using Weak Counter-Propagating Light
Laser high-order harmonic generation in the presence of relatively weak interfering light is investigated. The interfering pulses intersect the primary harmonic-generating laser pulse at the laser focus. The interfering light creates a standing intensity and phase modulation on the field, which …
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Electric oxygen-iodine laser discharge scaling and laser performance
… first electric discharge pumped oxygen-iodine laser referred to as ElectricOIL. This exciting improvement over the standard oxygen-iodine laser utilizes a gas discharge to produce the necessary electronically-excited molecular oxygen, O2(a1), that serves as the energy reservoir in the laser …
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High-power deep-UV laser for improved and novel experiments on hydrogen
… of a novel, high-power coherent 243.1 nm laser system, and through simulations, its ability to trap hydrogen in a magic wavelength optical trap. This wavelength of light is necessary to address the 1S–2S two-photon transition in hydrogen, and the primary motivation behind development of …
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Alkali-rare gas photodissociation lasers: applications to laser physics and atom-atom interactions
… several experiments in which alkali--rare gas laser systems are utilized as a simple platform with which to isolate and study atom-atom interactions and fundamental physical processes that are ill-understood or have never been investigated previously. Specifically, the minimum allowable energy …
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Towards a quantum gas microscope for fermionic atoms
… gases. First, we describe the construction of a laser system capable of cooling and trapping gaseous lithium-6 atoms in a 3D Magneto-Optical Trap. Second, we discuss the realization of a 2D Magneto-Optical Trap which, in our experiment, acts as a high-flux source of cold potassium-40 atoms. These …
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