Cord Arnold
Koordinator för Mötesplats Rydbergseminarier
Phase control of attosecond pulses in a train
Författare
Summary, in English
Ultrafast processes in matter can be captured and even controlled by using sequences of few-cycle optical pulses, which need to be well characterized, both in amplitude and phase. The same degree of control has not yet been achieved for few-cycle extreme ultraviolet pulses generated by high-order harmonic generation (HHG) in gases, with duration in the attosecond range. Here, we show that by varying the spectral phase and carrier-envelope phase (CEP) of a high-repetition rate laser, using dispersion in glass, we achieve a high degree of control of the relative phase and CEP between consecutive attosecond pulses. The experimental results are supported by a detailed theoretical analysis based upon the semi-classical three-step model for HHG.
Avdelning/ar
- Atomfysik
- Synkrotronljusfysik
- NanoLund: Centre for Nanoscience
Publiceringsår
2018-01-16
Språk
Engelska
Publikation/Tidskrift/Serie
Journal of Physics B: Atomic, Molecular and Optical Physics
Volym
51
Issue
3
Dokumenttyp
Artikel i tidskrift
Förlag
IOP Publishing
Ämne
- Atom and Molecular Physics and Optics
Nyckelord
- attosecond pulse
- carrier-envelope phase
- High-order harmonic generation
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0953-4075