Тип публикации: статья из журнала
Год издания: 2016
Идентификатор DOI: 10.1103/PhysRevA.94.063413
Ключевые слова: Absorption spectroscopy, Augers, Carbon, Delay control systems, Emission spectroscopy, Excited states, Molecules, Optical pumping, Probes, Time delay, Wave packets, Core-excited state, Information contents, Resonant Auger spectroscopy, Strong nonlinear coupling, Transient absorption, Vibrational dynamics, Vibrational wave packets, X ray pump-probe spectroscopy, Auger electron spectroscopy
Аннотация: In the present paper we propose nonlinear femtosecond x-ray pump-probe spectroscopy to study the vibrational dynamics of a core-excited molecular state and discuss numerical results in CO. A femtosecond pump resonantly excites the carbon core-excited 1s-1 pi* state of the CO molecule. A second strong probe (control) pulse is applieПоказать полностьюd at variable delay and is resonantly coupled to a valence excited state of the molecule. The strong nonlinear coupling of the control pulse induces Rabi flopping between the two electronic states. During this process, a vibrational wave packet in the core-excited state is created, which can be effectively manipulated by changing the time delay between pump and control pulses. We present an analysis of the resonant Auger electron spectrum and the transient absorption or emission spectrum on the pump transition and discuss their information content for reconstruction of the vibrational wave packet.
Журнал: PHYSICAL REVIEW A
Выпуск журнала: Vol. 94, Is. 6
ISSN журнала: 24699926
Место издания: COLLEGE PK
Издатель: AMER PHYSICAL SOC