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 “"Microlasers"”.
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Orbital Angular Momentum Microlasers: From The First Demonstration To Ultrafast Tunability
… photonic platforms, the development of OAM microlasers capable of direct generation of vortex light is critical in applying unbounded OAMs as information carriers to address the upcoming information explosion. However, conventional microlaser designs offer coherent emission with rather …
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Seuils et dynamique de l'émission par des microlasers organiques
"Une problématique qui entrave à l'application de ces dispositifs concerne le fait que plusieurs aspects théoriques de leur fonctionnement demeurent encore peu compris. En particulier, les systèmes lasers construits à partir de gravure bidimensionnelle sur des couches minces (microcavités …
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Surface-emitting lasers for communications: novel metal-cavity microlasers and high-contrast-grating tunable VCSELs
A comprehensive study of the theory and experiments of surface-emitting semiconductor lasers is presented. The design of novel micro and nanolasers using metal cavities for optical confinement is discussed. Theoretical modeling of quantum-well and quantum-dot emission properties, as well as …
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Metal-cavity surface-emitting nanolasers
… Advanced metal-cavity surface-emitting microlasers with submonolayer quantum dots are used as the active medium. Fabrication and experimental data are reported for electrical injection metal-cavity quantum-dot surface-emitting microlasers at room temperature. Detailed studies are …
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Stimulated emission from biological materials and novel optical resonators for diagnostic and imaging applications
… is capable of producing hundreds or thousands of microlasers from a single pump beam. These optical resonators are based on an intra-cavity stabilization scheme which is well-suited for sensitive single-cell refractive index monitoring and intra-cavity in-line holography. Finally, we construct a …
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Embedded Sensing System for Whispering-Gallery-Mode Optical Resonators
… ranging from optical communications, microlasers, sensing, opto-mechanics to quantum optics. However, overcoming obstacles of practical applications for WGM resonators is absolutely a big challenge. First, we report the first realization of a compact WGM sensing system, which …
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Experimental characterization of Cr4+:YAG passively Q-switched Cr:Nd:GSGG lasers and comparison with a simple rate equation model
… 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 a …
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Non-Hermitian Whispering Gallery Mode Optical Microresonators and Their Applications
… applications such as optical communications, microlasers, opto-mechanics, frequency comb, and cavity quantum electrodynamics. Recently, WGM microresonators have proven to be an excellent platform to study non-Hermitian physics, due to the ease with which non-Hermiticity can be controlled via …
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Integration of glass microspheres and planar waveguides for microsphere lasers
… as the narrow band filter, add-drop multiplexer, microlasers, and etc. In this work, the integration of microspheres with planar waveguides is the main focus. High quality neodymium-doped BK7 microspheres are fabricated and characterised to observe laser oscillation at 1.06 µm from the …
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Theoretical investigation of metal-cavity nanolasers and nanoLEDs and comparison with experiments
… fabricated by our group. The metal-cavity microlasers show the highest power among current metalcavity lasers and they operate at continuous-wave (CW) electrical injection at room temperature. We study this structure from calculating its gain profile of coupled multiple quantum wells (MQWs) …
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Coherently-driven exciton polaritons and directional cQED effects in the quantum dot-micropillar system
… method to demonstrate lasing action in high-Beta microlasers without the need for time consuming studies employing photon statistics. The second part of the thesis addresses another very important yet unexplored fundamental aspect of cQED. The main focus is on coherently-driven strongly-coupled …