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Master's Dissertation
DOI
10.11606/D.54.1984.tde-12052014-161003
Document
Author
Full name
Gabriel Pinto de Souza
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 1984
Supervisor
Committee
Castro Neto, Jarbas Caiado de (President)
Oliveira, Luiz Nunes de
Scalabrin, Artemio
Title in Portuguese
Ressonância de Fano na absorção de dois fótons em defeitos cristalinos
Keywords in Portuguese
Absorção de dois fótons
Óptica não linear
Ressonâncias de Fano
Abstract in Portuguese
Neste trabalho estudamos a forma de linha na absorção de dois fotons nas transições 4f7 de defeitos cristalinos superpostas com bandas de absorção multifonons. Escrevemos o perfil de linha sob a forma de Fano. O íon em estudo é Eu++ como defeito em um cristal de CaF2. Apresentamos o desenvolvimento da instrumentação necessária para realização do experimento, e obtemos resultados de ótima qualidade.
Title in English
Fano ressonances in the two photon absorption of defects in solids
Keywords in English
Fano ressonances
Non linear optics
Two photon absorption
Abstract in English
In this work we study the absorption of two photons in the electronic transition within the 4f 7configuration wich is superposed to the vibronic structure of 4f 7 - 4f65d transition. We describe the line shape with the Fano's formalism. The study was carried out on Eu+2 doped CaF2. The experimental apparatus was build and the results obtained are in good agreement with the theoretical predictions.
 
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Publishing Date
2014-05-13
 
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