東京大学 大学院工学系研究科 石川研究室

2013年12月の記事一覧

Photoelectron angular distributions in infrared one-photon and two-photon ionization of FEL-pumped Rydberg states of helium

Photoelectron angular distributions in infrared one-photon and two-photon ionization of FEL-pumped Rydberg states of heliumの画像
要旨訳: (近日中に公開) Abstract: The photoelectron angular distributions (PADs) have been investigated for infrared (IR) ionization of He atoms excited to Rydberg states by extreme ultraviolet free-electron laser pulses. The experiment was carried out with two pulses which do not overlap in time. Depending on the intensity of the IR pulses, one IR photon ionization or additionally two-photon above-threshold ionization is observed. For l...