[17p-W9_326-1~16] 3.5 Ultrashort-pulse and high-intensity lasers

4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[17p-W9_326-9] Measurement of supercontinuum soft x-ray pulse using all-optical frequency-resolved optical gating

〇(D)Minshuang Xia¹, Kaito Nishimiya¹, Eiji J Takahashi¹ (1.Extreme Photonics Research Team, RAP, RIKEN, 2-1 Hirosawa, Wako, 351-0198, Japan)

Keywords:

ultrafast optics,attosecond pulse generation

We present all-optical FROG measurement of supercontinuum attosecond pulses generated by a mid-infrared sub-cycle laser. Accurate reconstruction is shown to require inclusion of both phase modulation and amplitude modulation. The experimental observations are qualitatively interpreted using the classical three-step model, while a more rigorous analysis requires a quantum theory.