Attosecond transient absorption is one of the promising new techniques being developed to
exploit the availability of sub-femtosecond extreme ultraviolet (XUV) pulses to study the …

The concerted motion of two or more bound electrons governs atomic and molecular, non-
equilibrium processes including chemical reactions, and hence there is much interest in …

Attosecond science, born at the beginning of this century with the generation of the first
bursts of light with durations shorter than a femtosecond, has opened the way to look at …

We present a theoretical study of the photoelectron attosecond beating due to interference of
two-photon transitions in the presence of autoionizing states. We show that, as a harmonic …

The reconstruction of the full temporal dipole response of a strongly driven time-dependent
system from a single absorption spectrum is demonstrated, only requiring that a sufficiently …

High-harmonic generation from a gas target exhibits sharp spectral features and rapid
phase variation near the Cooper minimum. By applying spectral filtering, shaped isolated …

The optical properties of matter can be manipulated by coupling a strong field to an optical
transition. The concepts of Autler-Townes splitting and electromagnetically induced …

Strong-field manipulation of autoionizing states is a crucial aspect of electronic quantum
control. Recent measurements of the attosecond transient absorption spectrum (ATAS) of …

We study theoretically the photoabsorption spectra of an attosecond extreme ultraviolet
(XUV) pulse by a laser-dressed atomic system. A weak XUV excites an autoionizing state …

An extreme ultraviolet (EUV) single attosecond pulse passing through a laser-dressed
dense gas is studied theoretically. The weak EUV pulse pumps the helium gas from the …