Phase-dependent atomic ionization in few-cycle intense laser fields
- Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573 (Japan)
We have studied the carrier-envelope phase-dependent above-threshold-ionization processes by solving the time-dependent Schroedinger equation nonperturbatively. Our simulated carrier-envelope phase-dependent above-threshold-ionization spectra are in good agreement with the experimental measurement of Paulus et al. [Phys. Rev. Lett. 91, 253004 (2003)] if we shift the experimental carrier-envelope phase by 0.15{pi}. This means that we have recalibrated the carrier-envelope phase more accurately by comparing our simulations with the experimental measurements. Furthermore, by tracing back the origin of the ionized electrons, we have clearly identified that the low-energy electrons come from the direct ionization by the laser field and the high-energy electrons come from the recollision with the parent core after being bounced back by the laser field.
- OSTI ID:
- 20857638
- Journal Information:
- Physical Review. A, Vol. 74, Issue 3; Other Information: DOI: 10.1103/PhysRevA.74.031405; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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