Abstract
The electric current has been switched in diamond by a dual-laser field with an attosecond pulse train and a femtosecond laser, respectively serving to excite and drive electrons. The optical-induced current is simulated by the developed method based on the time-dependent density functional theory. The electric current is induced within several attoseconds with the diamond's conductivity increased by 16∼23 orders of magnitude. Our work opens the way to extending electronic signal processing from the present gigahertz domain into the exahertz domain.
Original language | English (US) |
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Article number | 025102 |
Journal | Journal of Physics D: Applied Physics |
Volume | 49 |
Issue number | 2 |
DOIs | |
State | Published - Nov 30 2015 |
Keywords
- TDDFT
- attosecond laser
- dielectrics
- femtosecond laser
- light switch
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Acoustics and Ultrasonics
- Surfaces, Coatings and Films