Above-threshold ionization in neon produced by combining optical and bichromatic XUV femtosecond pulses

Авторы: Douguet N., Grum-Grzhimailo A.N., Bartschat K.
Сборник: ArXiv
Серия: 1604.0371v1 hep-th
Том: 1
Год издания: 2016
Издательство: Cornell University Press
Местоположение издательства: United States
Первая страница: 1
Последняя страница: 9
Аннотация: We consider the ionization of neon induced by a femtosecond laser pulse composed of overlapping, linearly polarized bichromatic extreme ultraviolet and infrared fields. In particular, we study the effects of the infrared light on a two-pathway ionization scheme for which Ne 2s2 2p5 3s 1P is used as intermediate state. Using time-dependent calculations, supported by a theoretical approach based on the strong-field approximation, we analyze the ionization probability and the photoelectron angular distributions associated with the different sidebands of the ionization spectrum. Complex oscillations of the angular distribution anisotropy parameters as a function of the infrared light intensity are revealed. Finally, we demonstrate that coherent control of the asymmetry is achievable by tuning the infrared frequency to a nearby electronic transition.
Добавил в систему: Грум-Гржимайло Алексей Николаевич

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