[19p-H135-1~7] Science and Application of Extreme Nonlinear Phenomena Induced by Intense Terahertz and Infrared Electromagnetic Field

[19p-H135-3] Development of BIBO-based ultra-broadband optical chirped pulse amplifiers and their applications to attosecond and sub-cycle spectroscopies

〇Jiro Itatani¹ (1.ISSP, U-Tokyo)

Keywords:ultrafast spectroscopy,attosecond science,sub-cycle spectroscopy

We report our development of a waveform-controlled sub-TW-class intense IR source and intense mid-IR generation that are based on ultra-broadband optical parametric amplification in BIBO crystals. Using the former light source, we produced isolated attosecond pulses around the carbon K edge, which can be used for soft-X-ray absorption spectroscopy of carbon materials. Using the latter source, EO sampling was achieved by using few-cycle pulses in visible. These new technologies are expected to open new opportunities in attosecond and sub-cycle spectroscopies.