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|Title: ||Study and optimization of polariton LASERs|
|Authors: ||Di Carlo, Aldo|
|Issue Date: ||4-Sep-2009 |
|Abstract: ||A polariton laser is a new concept of device based on the Bose Einstein condensation of cavity exciton-polaritons. It offers intrinsically high modulation speeds, low thresholds, long lifetime and low power consumption. Polariton lasing has been demonstrated at low and room temperature in optically pumped structures. Electrical injection of excitons and polaritons states have been reported for GaAs structures, while the realization of an electrically driven polariton laser is still missing.
The aim of the work presented in this thesis has been the modelling, design and optimization of GaN based devices, with regard to the aspects involved in the realization of the electrical injected polariton laser. To achieve these goals, a new simulation software has been developed to study the exciton transport in semiconductors and used together with conventional tools. Several simulations have been performed to understand the behaviour of GaN based light emitting diodes (LED), Vertical Cavity ...|
|Appears in Collections:||Tesi di dottorato in ingegneria|
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