Phase control of attosecond pulses in a train
Research output: Contribution to journal › Article
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.
|Research areas and keywords||
Subject classification (UKÄ) – MANDATORY
|Journal||Journal of Physics B: Atomic, Molecular and Optical Physics|
|Publication status||Published - 2018 Jan 16|