Laser-induced plasma influence onto intrapulse four-wave mixing under femtosecond filamentation in airстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 28 мая 2015 г.
Аннотация:We experimentally investigate four-wave mixing under femtosecond filamentation in air of a pre-collimated/loosely focused beam with a single pulse. We show that its angular-frequency spectrum depends on preliminary focusing conditions and attribute this to the plasma density change. A simple model of the phase matched four-wave mixing gives a good agreement with the experimental results only if the plasma dispersion is taken into account.