Collective Atom–Light Interactions in Dense Atomic Vapours

Beschreibung

The propagation of light in 'dense media' where dipole-dipole interactions play a role is a fundamental topic that was first studied in the work of Clausius, Mossotti, Lorenz and Lorentz in the latter half of the nineteenth century. However, until recently there remained some areas of controversy: for example, whereas the Lorentz model for a gas predicts a resonance shift, a discrete dipole model does not. This thesis makes the first combined measurement of both the Lorentz shift and the associated collective Lamb shift. This clear experimental result stimulated new theoretical work that has significantly advanced our understanding of light propagation in interacting media.
The propagation of light in 'dense media' where dipole-dipole interactions play a role is a fundamental topic that was first studied in the work of Clausius, Mossotti, Lorenz and Lorentz in the latter half of the nineteenth century. However, until recently there remained some areas of controversy: for example, whereas the Lorentz model for a gas predicts a resonance shift, a discrete dipole model does not. This thesis makes the first combined measurement of both the Lorentz shift and the associated collective Lamb shift. This clear experimental result stimulated new theoretical work that has significantly advanced our understanding of light propagation in interacting media.
Nominated as an outstanding Ph.D. thesis by Durham University, UK Presents measurement of the largest negative group index to date Gives quantitative comparisons between experimental results and theory First combined measurement of both the Lorentz shift and the associated collective Lamb shift Includes supplementary material: sn.pub/extras

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James Keaveney

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Atom-light Interaction Collective Atom-light Interactions Cooperative Atom-light Interactions Dipole-dipole Interaction Electric Susceptibility Fast and Slow Light Nano-cells Nanometric Vapor Cell Negative Group Index Optical Bloch Equations

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