[21a-221B-1~7] 4.3 Ultrafast Optics and Photonics

▲ [21a-221B-2] Characterization and shaping of over-octave-spanning infrared (1.0-2.2 um) spectrum

〇(P)Yuchieh Lin¹、Yasuo Nabekawa¹、Katsumi Midorikawa¹ (1.Attosecond Science Research Team of RAP center in RIKEN)

キーワード：pulse characterization

In this work, we report, to the best of our knowledge, the first application of extended ptychographic iterative algorithm and cross-correlation frequency-resolved optical gating technique to characterize an over-octave-spanning IR spectrum ranging from 1.0-2.2 µm, which can form a single-cycle pulse under the transform-limit condition. Based on the retrieved parameters, we further employ a pulse-shaping technique by two acousto-optic programmable dispersive filters to compensate the large dispersion of the resulting spectrum.