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Attosecond Streaking Time Delays: Finite-Range Interpretation and Applications
We review theoretical studies of the attosecond streaking time delay concept in photoionization via the investigation of the electron dynamics in the streaking field after the transition of the photoelectron into the continuum upon absorption of an extreme ultraviolet photon. Based on the results, a so-called finite range interpretation was introduced, which highlighted that the delay is accumulated until the streaking pulse ends and, hence, over a finite range of the potential of the parent ion. Following a discussion of the analysis leading to this interpretation, we summarize a few applications which provide insights into different aspects of the streaking time delay concept in photoionization. Besides a review of previously presented results, we give an analysis of the relevance of the first half-cycle of the streaking field and an outlook regarding the perspective of using the streaking method to resolve dynamical changes in the potential that the photoelectron explores during its propagation in the continuum
<b>Temas sobre ciência e pesquisa: seleção de algumas unidades textuais básicas</b>
<table style="font-family: 'Times New Roman';" border="0" cellspacing="0" cellpadding="0" width="700" align="center"><tbody><tr><td><p class="justifica" style="text-align: justify; font-size: 14px; text-indent: 40px;" align="justify"><span style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size: x-small;"><p align="justify">Este artigo é uma compilação de unidades textuais sobre o significado de algumas categorias intrínsecas à ciência. Temas sobre epistemologia, racionalidade e conhecimento ou pesquisa, são apresentadas a partir das próprias conceituações dos autores aqui citados. A minha tarefa limitou-se apenas a selecionar, organizar ou traduzir essas formulações e, em alguns casos, a elaborar os vínculos necessários entre uma e outra opinião, sobre o mesmo assunto, dentro da narrativa do texto.</p></span></p><p class="justifica" style="text-align: justify; font-size: 14px; text-indent: 40px;" align="justify"><span style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size: x-small;"><b>Palavras-chave</b>: Epistemologia, Construção da ciência, Conhecimento científico.</span></p></td></tr><tr><td height="23"> </td></tr></tbody></table><br /