Stabilizing isolated attosecond pulse formation by dispersion tuning
Alexander Kothe, Thomas Gaumnitz, Jost Henkel, Joachim Schneider, Mark, J. Prandolini, Julia Hengster, Markus Drescher, Manfred Lein, Thorsten Uphues
TL;DR
This paper investigates how dispersion tuning can stabilize the carrier envelope phase of isolated attosecond pulses, demonstrating that near Fourier-limited pulses with slight negative chirp minimize CEP jitter, advancing control of XUV pulses.
Contribution
It provides a theoretical and experimental analysis showing that dispersion tuning near Fourier limit reduces CEP jitter in IAPs, aiding precise electric field control.
Findings
CEP jitter minimized near Fourier limit with slight negative chirp
Dispersion tuning stabilizes the CEP of IAPs
Understanding CEP jitter aids in controlling XUV pulses
Abstract
The carrier envelop phase (CEP) of isolated attosecond pulses (IAPs) is theoretically and experimentally investigated based on the assumption that a significant contribution originates from the measurable CEP jitter of the driving laser. By solving the timedependent Schr\"odinger equation, it is demonstrated that the attosecond CEP jitter of IAPs is minimized when the driving pulse is near its Fourier limit but with slightly negative chirp. Although, at present the utilization of the CEP of IAPs has limited applications, understanding and characterization of the CEP jitter of IAPs is the first step towards exact control of the electric field of extreme ultraviolet (XUV) pulses
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