3:15 PM - 3:30 PM △ [14p-C32-7] Generation of ultrashort optical pulses via four-wave Raman mixing in hydrogen gas from the near-infrared to the visible region 〇(D)Yuta Nakano1, Totaro Imasaka2 (1.Kyushu Univ, 2.Ctr. Fut. Chem.)