Multiple refocusing of a feratosecond laser pulse in a dispersive liquid (methanol)статья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:In this work multiple refocusing of femtosecond pulse in liquid (methanol) is studied both experimentally and numerically. We focused a 38 fs laser pulse, which is spatially filtered, into a glass cell containing a very dilute solution of Coumarin 440 in methanol. Via three photon fluorescence of coumarin, up to 6 refocusing peaks were observed along the direction of the pulse propagation. This is the first evidence showing a way to control multiple refocusing. (C) 2003 Elsevier B.V. All rights reserved.