Arago spot formation in the time domain

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TitreArago spot formation in the time domain
Type de publicationJournal Article
Year of Publication2019
AuteursFinot C., Rigneault H.
JournalJOURNAL OF OPTICS
Volume21
Pagination105504
Date PublishedOCT
Type of ArticleArticle
ISSN2040-8978
Mots-clésDispersion, Fresnel diffraction, nonlinear propagation, optical fiber, space-time duality
Résumé

Using the space-time duality, we theoretically and experimentally revisit the Arago spot formation in the time domain and explore the temporal emergence of a bright spot in the time shadow of an initial waveform. We describe the linear regime of propagation using Fresnel's integrals and show that in the presence of Kerr nonlinearity the Arago spot formation is affected depending on the sign of the dispersion. We finally confirm experimentally the Arago spot formation in the time domain using a telecommunication optical fiber platform.

DOI10.1088/2040-8986/ab4105