Abstract
In this presentation, I will present ultrafast electron dynamics facilitated by high-power femtosecond lasers. These dynamics involve strong-field processes, including tunneling, acceleration, and rescattering, leading to phenomena such as above-threshold ionization, high-harmonic generation, and frustrated tunneling ionization (FTI). I will introduce a method to characterize a temporal waveform of a laser field using a rescattered electron, providing insights into the laser field and ultrafast electron dynamics. Additionally, experimental studies on coherent extreme ultraviolet emission generated through FTI will be presented, which include pump-probe results, molecular alignment dependence, interference of emissions, and phase-matching conditions. The progress on liquid target development is briefly discussed, highlighting the recording of laser-induced plasma evolution and high-order harmonic generation. The liquid target shows potential for use in attosecond streaking experiments as a bright extreme ultraviolet light source.
