Advances in attosecond science have led to a wealth of important discoveries in atomic,
molecular, and solid-state physics and are progressively directing their footsteps toward …

The frequency of electric currents associated with charge carriers moving in the electronic
bands of solids determines the speed limit of electronics and thereby that of information and …

Real-time observation of ultrafast dynamics in the microcosm is a fundamental approach for
understanding the internal evolution of physical, chemical and biological systems. Tools for …

The availability of high-energy pulses with durations shorter than the period of their carrier
frequency (sub-cycle) will reveal new regimes of strong-field light–matter interactions …

An accurate analytic model describing the microscopic mechanism of high-harmonic
generation (HHG) in solids is derived. Extensive first-principles simulations within a time …

High-order-harmonic generation by a highly nonlinear interaction of infrared laser fields with
matter allows for the generation of attosecond pulses in the XUV spectral regime. This …

High harmonic generation (HHG) with longitudinal optical orbital angular momentum has
attracted much attention over the past decade. Here, we present the first study on the HHG …

Attosecond science promises to reveal the most fundamental electronic dynamics occurring
in matter and it can develop further by meeting two linked technological goals related to high …

Scientists have been developing sources of light with ever-shorter pulse durations, in order
to study motion in systems ranging from a golfer's swing to the motion of atoms within …

We demonstrate broadband focusing of multiple high-order harmonics of intense
femtosecond laser pulses using an ellipsoidal mirror. The ellipsoidal mirror, with a high …