Field-resolved two-dimensional spectroscopy reveals the sub-cycle gain dynamics of a free-running terahertz quantum cascade laser and disentangles resonantly enhanced nonlinearities up to eight-wave mixing in a regime where gain replaces absorption.
Kongress- / Buchtitel:
International Conference on Ultrafast Phenomena (P) Technical Digest Series (Optica Publishing Group, 2022), paper Tu5A.2
Kongress / Zusatzinformationen:
Montreal, Quebec, Canada 18-22 July 2022-07
Verlag / Institution:
Optica Publishing Group (former OSA Technical Digest (Optical Society of America)