Abstract
Recent strong-field experiments [1,2] have used few-cycle mid-infrared (MIR) laser pulses to generate soft X-ray supercontinua able to support isolated attosecond pulses (IAPs) with durations close to the atomic unit of time (24 as). Efforts have been focused on improving the disadvantageous low efficiency of high harmonic generation (HHG) [2] from long-wavelength driver fields, as well as on generating shorter and chirp-free IAPs [3]. Tailoring waveforms by the superposition of controlled electric fields has shown the potential to overcome such limitations of single-color-driven HHG [4]. Here, we present the spatial characterization and spatiotemporal overlap [5] between near-(NIR) and mid-(MIR) infrared beams from a two-channel, optical paramemtric amplifier (OPA)-based waveform synthesizer. This, together with the demonstrated temporal [5] and beam pointing stabilization, will allow us to achieve full 3D, long-term stable synthesis.
© 2019 IEEE
PDF ArticleMore Like This
Yudong Yang, Giulio Maria Rossi, Roland E. Mainz, Fabian Scheiba, Giovanni Cirmi, and Franz X. Kärtner
FF2C.3 CLEO: QELS_Fundamental Science (CLEO:FS) 2019
Roland E. Mainz, Giulio Maria Rossi, Fabian Scheiba, Yudong Yang, Giovanni Cirmi, and Franz X. Kärtner
SW4E.4 CLEO: Science and Innovations (CLEO:S&I) 2019
Kyung-Han Hong, Zhou Wang, Tobias Kroh, Hyunwook Park, Peter Krogen, Houkun Liang, Louis F. DiMauro, and Franz X. Kärtner
LTu4F.2 Laser Science (LS) 2017