Armadilha Óptica de Dipolo para 88Sr
Ano de defesa: | 2019 |
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Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de São Carlos
Câmpus São Carlos |
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Física - PPGF
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Departamento: |
Não Informado pela instituição
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País: |
Não Informado pela instituição
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Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | https://repositorio.ufscar.br/handle/20.500.14289/11482 |
Resumo: | In this work, we present the study of light and matter interaction through the building and operation of a cold atoms experiment. The motivation is to study light scattering in the dense regime, where this phenomenon becomes a collective effect, since the distance between atoms is such that inter-atomics effects must be considerated (in terms of density, one could say that the sample belongs to the dense regime when its density is of the order of 1/A3, where A is the wavelenght) and also because scientific comunity hasn’t fully understand it yet. To achieve such a regime, we use the luminous force that happens when an atom interacts with a laser beam. First we use the radiation pressure force to create a magneto-optical trap, and then use the dipolar force to create the final objective of this dissertation: the optical dipole trap. In the end, we have achieved an ODT sample with 0,17 density in 1/A3 unitys. Such density does not characterize the sample as a dense one, but the problems of such results are already being solved, making a dense sample perfectly accessible, which we can say it’s a very good result for our first optica dipole trap ever. Now, the experiment is at the door of a far over interesting physics, which is the study of collective scattering of light. |