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Master's Dissertation
DOI
Document
Author
Full name
Marcel Eduardo Firmino
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 1991
Supervisor
Committee
Bagnato, Vanderlei Salvador (President)
Becerra, Carlos Castilla
Zilio, Sergio Carlos
Title in Portuguese
Construção de um sistema experimental para desaceleração de átomos.
Keywords in Portuguese
Átomos alcalinos
Átomos de sódio
Bobinas eletromagnéticas
Bobinas resfriadas com água
Campo magnético
Desaceleração de átomos
Efeito Zeeman
Espectro
Forno
Frequência de Rabi
Laser
Nariz de ejeção
Nuvem de átomos
Perfil de campo
Sensor de efeito Hall
Sistemas de posicionamento mecânico
Sistemas de vácuo
Técnica de sintonização usando efeito Zeeman
Técnicas de resfriamento
Abstract in Portuguese
Neste trabalho apresentamos a construção e teste de um sistema experimental que nos permite produzir um fluxo intenso de átomos lentos. Discutimos o desenho e construção do solenóide que compensa o efeito Doppler que surge durante o processo de desaceleração, as câmaras de vácuo, o forno que gera o feixe atômico e o sistema ótico utilizado. Estudamos a técnica de desaceleração de átomos pelo ajuste Zeeman. Uma nova técnica de observação que consiste no acompanhamento da fluorescência do feixe ao longo do caminho de desaceleração é usada, o que nos permite uma observação direta do processo.
Title in English
Construction of an experimental system for stopping atoms.
Keywords in English
Alkaline atoms
Cloud of atoms
Coil cooled with water
Cooling techniques
Deceleration of atoms
Electromagnetic coils
Field´s profile
Hall efect´s sensor
Laser
Magnetic field
Mechanical positioning systems
Nozzle
Oven
Rabi frequency
Sodium atoms
Spectrum
Stopping atoms
Vacuum systems
Zeeman effect
Zeeman tuning technique
Abstract in English
This work presents the development and test of an experimental set-up which allows to produce a very strong slow motion atomic beam. We discuss the calculation and construction of the solenoid to compensate the Doppler effect arising during the deceleration process, vacuum chambers, the oven which produces the atomic beam and the optical system used. We have studied the Zeeman-tuned technique to slow an atomic beam of sodium atoms. A new technique to study the deceleration which Consist in monitoring the fluorescence along the deceleration path is used, which allow us a direct observation of the process.
 
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Publishing Date
2009-03-24
 
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