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Full-Text Articles in Condensed Matter Physics
The Study Of Nano-Optics In Hybrid Systems, Marek J. Brzozowski
The Study Of Nano-Optics In Hybrid Systems, Marek J. Brzozowski
Electronic Thesis and Dissertation Repository
In this thesis, we study the quantum light-matter interaction in polaritonic heterostructures. These systems are made by combining various nanocomponents, such as quantum dots, graphene films, metallic nanoparticles and metamaterials. These heterostructures are used to develop new optoelectronic devices due to the interaction between nanocomposites.
Photoluminescence quenching and absorption spectrum are determined and an explanatory theory is developed for these polaritonic heterostructures. Photoluminescence quenching is evaluated for a graphene, metallic nanoparticle and quantum dot system. It is shown that average distance between nanocomposites or concentration of nanocomposites affect the output these system produced. Photoluminescence quenching was also evaluated for a …
Quantum Coherence And Interference In Metallic Photonic Crystals And Hybrid Systems, Ali Hatef
Quantum Coherence And Interference In Metallic Photonic Crystals And Hybrid Systems, Ali Hatef
Electronic Thesis and Dissertation Repository
In the first part of the thesis, we study the absorption coefficient of quantum dots doped in metallic photonic crystals under different circumferences. We study numerically the temporal evolution of the absorption coefficient profile where a probe field is applied to monitor the absorption process in two cases, when quantum dots are embedded lightly and densely. We also studied the effect of a changing plasma frequency on the absorption profile of quantum dots two possible field configurations. We show that the changes in plasma energy can take the system from the absorption region to the transparent and gain region.
As …