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Showing 1 to 11 of 11 for “"Exciton polariton"”.
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Engineering J-aggregate cavity exciton-polariton devices
… creating light-matter quasi-particles known as exciton-polaritons, even at room temperature. In this thesis, I discuss my research on the properties of J-aggregate thin films and on advancing the device and materials engineering of strongly-coupled devices based on J-aggregate thin films to the …
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Boson Josephson Junctions based on Exciton-Polariton Condensates
… the Josephson effect in dilute quantum gases of excitons and exciton-polaritons. An exciton is a kind of elementary excitation in semiconductors, which, through strong coupling with photons, can form a light-matter hybrid particle called an exciton-polariton. Similar to superconducting systems, …
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Photostabilization of J-aggregate cyanine dyes for exciton-polariton based devices
… strongly coupled systems as they possess large exciton binding energies and huge oscillator strengths that have allowed for the creation of room temperature polariton condensates, superfluids, and other exotic phenomena. Using J-aggregates, the aggregated form of cyanine organic dyes, we have …
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Correlated exciton dynamics in semiconductor nanostructures
… fundamentally important electronic state is an exciton, an excited electron bound to a positively charged vacancy. Excitons can become correlated with other excitons, mutually influencing one another and exhibiting collective properties. The focus of this dissertation concerns the origins, …
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Growth and characterisation of thin films of CuCl and related materials
… and optical properties of the material. The exciton positions in the undoped samples have been repeatable, but deteriorate as oxygen doping levels increase. A suitable capping method for use in x-ray diffraction has been found. Nail varnish applied to the samples was shown to prevent …
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Nonlinear Processes in Room Temperature Exciton-Polaritons
… where hybrid light-matter states known as exciton-polaritons form, leading to enhanced light matter interaction, modified material properties, and novel quantum phenomena. In this thesis, we explore the phenomenology of exciton-polaritons in strained TMD microcavities, 2D perovskites, …
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Exciton-polaritons in thermal equilibrium : from Bose-Einstein condensation to exciton-polaritonics
… collective system, namely, microcavity exciton-polariton Bose-Einstein condensates. Microcavity exciton-polaritons, hereafter simply polaritons, are bosonic quasiparticles formed in a resonant semiconductor microcavity by coupling the excitonic polarizabilities in quantum wells to the …
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Spin and lattice properties of optically trapped exciton polaritons
Exciton-polaritons are the fundamental excitations arising from the strong coupling of quantum well excitons and cavity photons in semiconductor microcavities. They are compound bosons for which stimulated scattering and macroscopic occupation of single quantum states can occur at sufficiently high …
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Excitations in superfluids of atoms and polaritons
… to the study of excitations in atomic and polariton Bose-Einstein condensates (BEC). These two specimens are prime examples for equilibrium and non equilibrium BEC. The corresponding condensate wave function of each system satisfies a particular partial differential equation (PDE). These …
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Strongly correlated quantum fluids and effective thermalization in non-Markovian driven-dissipative photonic systems
… the precursors experiments in semiconductor exciton-polariton already allow to reach the Bose-Einstein Condensation and superfluid regimes, novel platforms such as superconducting circuits, coupled cavity arrays or photons coupled to Rydberg EIT (Electromagnetically induced Transparency) …
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Interactions of Organic Fluorophores with Plasmonic Surface Lattice Resonances
… of Mie-scattering dielectric particles or excitonic nanoparticles.</p> <p>SLRs are another plasmonic mode, in addition to surface plasmons polaritons and LSPRs, through which visible light can be absorbed or scattered. In addition, SLRs in combination with various excitonic materials have …