期刊
NEW JOURNAL OF PHYSICS
卷 15, 期 -, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1367-2630/15/6/063019
关键词
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资金
- Hungarian Scientific Research Fund (OTKA) [T81364]
- European Union [TAMOP-4.2.2.A-11/1/KONV-2012-0060, TAMOP-4.2.2.C-11/1/KONV-2012-0010]
- European Social Fund
- DFG Cluster of Excellence: Munich-Centre for Advanced Photonics
We consider the motion of charge carriers in a bulk wide-gap dielectric interacting with a few-cycle laser pulse. A semiclassical model based on Bloch equations is applied to describe the emerging time-dependent macroscopic currents for laser intensities close to the damage threshold. At such laser intensities, electrons can reach edges of the first Brillouin zone even for electron-phonon scattering rates as high as those known for SiO2. We find that, whenever this happens, Bragg-like reflections of electron waves, also known as Bloch oscillations, affect the dependence of the charge displaced by the laser pulse on its carrier-envelope phase.
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