2019/11/01 by Alismail, Ayman, Wang, Haochuan, Barbiero, Gaia +7 · 2 citations
#FOS: Physical sciences #Optics (physics.optics)
paper · doi:10.48550/arxiv.1911.00545
The development of high-energy, high-power, multi-octave light-transients is currently subject of intense research driven by emerging applications in attosecond spectroscopy and coherent control. We report on a phase-stable, multi-octave source based on a Yb:YAG amplifier for light-transient generation. We demonstrate the amplification of a two-octave spectrum to 25 μJ of energy in two broadband amplification channels and their temporal compression to 6 fs and 18 fs at 1 μm and 2 μm, respectively. In this scheme due to the intrinsic temporal synchronization between the pump and seed pulses, the temporal jitter is restricted to long-term drift. We show that the intrinsic stability of the synthesizer allows for sub-cycle detection of an electric field at 0.15 PHz. The complex electric field of the 0.15 PHz pulses and their free-induction decay after interaction with water molecules are resolved by electro-optic sampling over 2 ps. The scheme is scalable in peak- and average-power.