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Master's Dissertation
DOI
https://doi.org/10.11606/D.76.2009.tde-19032009-141930
Document
Author
Full name
Bruno Spolon Marangoni
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2009
Supervisor
Committee
Marcassa, Luis Gustavo (President)
Araujo, Luis Eduardo Evangelista de
Misoguti, Lino
Title in Portuguese
Moléculas frias em armadilhas ópticas
Keywords in Portuguese
Ressonância colisional. Formação molecular. Armadilha de dipolo.
Abstract in Portuguese
Neste trabalho estudamos o processo de ressonância colisional o que nos permitiu aumentar a taxa de formação molecular em até seis vezes. Isto foi feito variando-se a temperatura atômica de uma amostra inicialmente aprisionada em uma armadilha magneto óptica (MOT) através de um passo de resfriamento do tipo melaço óptico (molasses). Uma explicação qualitativa foi apresentada para o efeito observando as soluções das funções de ondas parciais para átomos interagentes no estado fundamental. Carregamos uma armadilha óptica de dipolo formada por um laser de Ti:Safira. Por fim, ressaltamos a importância de tais resultados para o nosso grupo de pesquisas e a sua utilização em futuros experimentos.
Title in English
Cold molecules in optical traps.
Keywords in English
Partial wave ressonance process. Molecular formation. Dipole trap.
Abstract in English
In this work, we study a partial wave resonance process which allows us to increase the molecule formation rate up to six times. This was done by an atomic temperature variation which was first trapped in a magneto optical trap (MOT) by applying a molasses stage. A qualitative explanation was presented for the observed effect through the partial waves solutions for ground states interacting atoms. We loaded an optical dipole trap formed by a Ti:Sapphire laser. Finally, we discuss the importance of such results for our research and their use in future experiments.
 
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Publishing Date
2009-03-24
 
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