Carrier Envelope Phase Description for an Isolated Attosecond Pulse by Momentum Vortices*
- 1 May 2019
- journal article
- research article
- Published by IOP Publishing in Chinese Physics Letters
Abstract
As a crucial parameter for a few-cycle laser pulse, the carrier envelope phase (CEP) substantially determines the laser waveform. We propose a method to directly describe the CEP of an isolated attosecond pulse (IAP) by the vortex-shaped momentum pattern, which is generated from the tunneling ionization of a hydrogen atom by a pair of time-delayed, oppositely and circularly polarized IAP-IR pulses. Superior to the angular streaking method that characterizes the CEP in terms of only one streak, our method describes the CEP of an IAP by the features of multiple streaks in the vortex pattern. The proposed method may open the possibility of capturing sub-cycle extreme ultraviolet dynamics.Keywords
This publication has 18 references indexed in Scilit:
- Carrier-Envelope Phase Effects of a Single Attosecond Pulse in Two-Color PhotoionizationPhysical Review Letters, 2013
- Single-shot carrier–envelope phase measurement of few-cycle laser pulsesNature Physics, 2009
- Attosecond physicsReviews of Modern Physics, 2009
- Attosecond real-time observation of electron tunnelling in atomsNature, 2007
- Isolated Single-Cycle Attosecond PulsesScience, 2006
- Control of Electron Localization in Molecular DissociationScience, 2006
- Attosecond Double-Slit ExperimentPhysical Review Letters, 2005
- Measurement of the Phase of Few-Cycle Laser PulsesPhysical Review Letters, 2003
- Attosecond control of electronic processes by intense light fieldsNature, 2003
- Attosecond metrologyNature, 2001