Absorptive and dispersive optical responses of excitons in a single quantum dot
The authors have determined both the real and imaginary parts of the dielectric polarizability of a single quantum dot. The experiment is based on the observation and the manipulation of Rayleigh scattering at photon frequencies near the resonance of an optical exciton transition in single self-asse...
| Autores: | , , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2006 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/17547 |
| Acceso en línea: | http://hdl.handle.net/10261/17547 |
| Access Level: | acceso abierto |
| Palabra clave: | Indium compounds Gallium arsenide III-V semiconductors Semiconductor quantum dots Excitons Dielectric polarisation Rayleigh scattering Self-assembly Semiconductor growth Light interference Fabry-Perot interferometers Reflectivity |
| Sumario: | The authors have determined both the real and imaginary parts of the dielectric polarizability of a single quantum dot. The experiment is based on the observation and the manipulation of Rayleigh scattering at photon frequencies near the resonance of an optical exciton transition in single self-assembled InAs and InGaAs quantum dots. The interference between the narrow-band laser field and the weak electromagnetic field coherently scattered by the quantum dot is detected with a cryogenic Fabry-Pérot setup by combined differential transmission and reflectivity measurements. |
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