Probing and Controlling Autoionization Dynamics with Attosecond Light Pulses in 
a Strong Dressing Laser Field

Chu, Wei-Chun; Morishita, Toru; Lin, C. D.

doi:10.6122/CJP.52.301

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Probing and Controlling Autoionization Dynamics with Attosecond Light Pulses in a Strong Dressing Laser Field

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Chu, Wei-Chun
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Chu, W.-C., Morishita, T., & Lin, C. D. (2014). Probing and Controlling Autoionization Dynamics with Attosecond Light Pulses in a Strong Dressing Laser Field. SI, 52(1), 301-319. doi:10.6122/CJP.52.301.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-664F-5

Abstract

We review the theoretical investigations of the autoionzing wave packet excited by an isolated attosecond pulse and dressed by a time-delayed intense laser pulse. The few-level model is described and the applications in photoemission and photoabsorption are given. For the three-level, resonantly coupled system, the main features are explained by the Rabi oscillation modulated in the dressing field. For such a system, by precisely controlling the intensity and the time delay of the dressing pulse, we show the shaping of the attosecond pulse when propagating in a gas medium. A more sophisticated multi-level system with coupling terms involving continuum states is also developed, in which the importance of the continuum-continuum coupling is evaluated with the help of an ab initio calculation.