Time-delayed nonsequential double ionization with few-cycle laser pulses: importance of the carrier-envelope phase
| العنوان: | Time-delayed nonsequential double ionization with few-cycle laser pulses: importance of the carrier-envelope phase |
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| المؤلفون: | M. T. Nygren, T. Shaaran, C. Figueira de Morisson Faria |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | Physics, Quantum Physics, Atomic Physics (physics.atom-ph), Double ionization, Attosecond, Carrier-envelope phase, Phase (waves), FOS: Physical sciences, Electron, Atomic and Molecular Physics, and Optics, Ion, Physics - Atomic Physics, Excited state, Ionization, Physics::Atomic Physics, Atomic physics, Quantum Physics (quant-ph) |
| الوصف: | We perform theoretical investigations of laser-induced nonsequential double ionization with few cycle pulses, with particular emphasis on the dependence of the electron-momentum distributions on the carrier-envelope phase. We focus on the recollision-excitation with subsequent tunneling ionization (RESI) pathway, in which a released electron, upon return to its parent ion, gives part of its kinetic energy to promote a second electron to an excited state. At a subsequent time, the second electron is freed through tunneling ionization. We show that the RESI electron-momentum distributions vary dramatically with regard to the carrier-envelope phase. By performing a detailed analysis of the dynamics of the two active electrons in terms of quantum orbits, we relate the shapes and the momentum regions populated by such distributions to the dominant set of orbits along which rescattering of the first electron and ionization of the second electron occurs. These orbits can be manipulated by varying the carrier-envelope phase. This opens a wide range of possibilities for controlling correlated attosecond electron emission by an adequate pulse choice. 12 pages, 7 figures, 1 table |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee51569645267666b056c3588dff8f19 http://arxiv.org/abs/1206.5185 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....ee51569645267666b056c3588dff8f19 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |