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Da Ros, Elisa (2014) Study for the development of a cavity enhanced single photon source. [Magistrali biennali]

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The nitrogen-vacancy defect in diamond (NV centre) is a leading candidate for solid-state implementations of quantum information technologies. Among other useful properties, it is a bright source of single photons. It is difficult, though, to collect the emitted photons in a single spatial and spectral mode which is often needed for quantum information applications. One way to improve the single-mode collection efficiency is to embed an NV centre in a high-finesse cavity. The coupling of the NV centre dipole to the cavity mode gives rise to the Purcell enhancement -- an increase of the emission into the cavity's spectral and spatial mode. The goal of this project will be to develop a fibre-based microcavity and to use it for the observation of enhanced single-photon emission from a diamond nanocrystal. It will involve a wide range of experimental techniques, for example basic optics (particularly Gaussian beam propagation), CO2 laser ablation, surface analysis by optical and atomic force microscopes, interferometry, photon counting, etc. There will also be a certain amount of data analysis, simulations and theoretical calculations.

Item Type:Magistrali biennali
Corsi di Diploma di Laurea:Scuola di Scienze > Fisica
Uncontrolled Keywords:optical cavity, NV centres, Co2 laser, fiber Fabry-Pérot cavity
Subjects:Area 02 - Scienze fisiche > FIS/03 Fisica della materia
Area 02 - Scienze fisiche > FIS/01 Fisica sperimentale
Codice ID:47105
Relatore:Mattei, Giovanni
Correlatore:Thomsen, Jan W. and Andersen, Ulrik L.
Data della tesi:December 2014
Biblioteca:Polo di Scienze > Dip. Fisica e Astronomia "Galileo Galilei" - Biblioteca
Tipo di fruizione per il documento:on-line per i full-text
Tesi sperimentale (Si) o compilativa (No)?:Yes

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