[21p-P14-1~10] 3.5 超高速・高強度レーザー（旧3.6）

英語発表

[21p-P14-1] All-optical metrology for GW-scale isolated attosecond pulses

〇Dianhong Dong¹, Lu Xu¹, Kotaro Imasaka^1,2, Eiji J. Takahashi^1,2 (1.Ultrafast Coherent Soft X-ray Photonics Research Team, RAP, RIKEN, 2.Extreme Laser Science Laboratory, CPR, RIKEN)

キーワード：

attosecond pulse characterization、attosecond pulse

In this work, an all-optical in-suit measurement is applied for fully characterizing the Gigawatt-scale IAP pulse in both spatial and temporal domains. An extra non-collinear weak gating pulse is injected into the gas cell to perturb the HHG process, which result in the spectrum modulation based on the relative delay changes. Compared with the FROG-CRAB measurement, both the spatial and temporal profiles of IAPs will be completely reconstructed with the PCGP algorithm.