Персона: Тюрин, Денис Игоревич
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Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
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Тюрин
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Денис Игоревич
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- ПубликацияТолько метаданныеAttosecond time shifts in atomic strong field ionization by tailored laser pulses(2022) Popruzhenko, S. V.; Tyurin, D. I.; Тюрин, Денис Игоревич© 2022, The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature.Using the description of the ionization process in intense electromagnetic fields in terms of quantum orbits, we examine the ionization time concept used for the determination of the hypothetical tunneling time delay. We investigate the validity of the common conjecture that the electron escapes from the barrier with the highest probability when the electric field strength of the laser wave reaches its absolute maximum. Our calculation demonstrates that this is exactly correct either in the static field limit or under special restrictions imposed on the laser pulse shape, while for a laser pulse of an arbitrary form a small non-adiabatic time shift between the field maximum and the maximum of the tunneling probability emerges. For laser and atom parameters typical for experiments on tunnel or multiphoton ionization of atoms, this shift may vary from several to several dozens attoseconds. It also generates a potentially measurable correction in the angle between the directions of the most probable photoelectron momentum and of the highest electric field. Our findings may help identifying and measuring extremely small time and angular shifts in the strong field ionization process.
- ПубликацияТолько метаданныеSearch for the Collective Tunneling Effect in the Ionization of Multiply Charged Li-Like Ions by Two Laser Beams of Extreme Intensity(2023) Popruzhenko, S. V.; Tyurin, D. I.; Тюрин, Денис Игоревич