Técnica de bombeio e prova para medidas de absorção de estado excitado e de emissão estimulada, em materiais sólidos dopados com íons terras raras

Química Nova

Andrea Simone Stucchi De Camargo¹  Luiz Antonio De Oliveira Nunes¹ 

[1] ,Universidade de São Paulo Instituto de Física de São Carlos São Carlos SP ,Brasil

关键词: pump-probe technique;    excited state absorption;    stimulated emission;   

DOI  :  10.1590/S0100-40422008000800032

来源: SciELO

【 摘 要 】

Rare earth ion doped solid state materials are the most important active media of near-infrared and visible lasers and other photonic devices. In these ions, the occurrence of Excited State Absorptions (ESA), from long lived electronic levels, is commonplace. Since ESA can deeply affect the efficiencies of the rare earth emissions, evaluation of these transitions cross sections is of greatest importance in predicting the potential applications of a given material. In this paper a detailed description of the pump-probe technique for ESA measurements is presented, with a review of several examples of applications in Nd3+, Tm3+ and Er3+ doped materials.

【 授权许可】

CC BY-NC   
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