講演情報
[11p-C213-7]Extending Ultrafast Core-Level Spectroscopy Beyond the Oxygen K-Edge via a Tabletop Soft X-Ray Source
〇HungWei Sun1, Nobuhisa Ishii1, Momoko Maruyama1, Ryuji Itakura1 (1.QST KPSI)
キーワード：
High harmonic generation、ultrafast spectroscopy、core-level spectroscopy
We report time-resolved soft X-ray absorption measurements of nitric oxide at both the nitrogen and oxygen K-edges using a high-harmonic-generation source driven by a high-power optical parametric chirped-pulse amplifier. The transient spectra show the formation of NO+ ions and a decrease in the neutral NO induced by strong-field ionization. These measurements demonstrate the capability of core-level spectroscopy to track ultrafast dynamics in oxygen-containing systems using a tabletop light source.