@misc{oai:repo.qst.go.jp:00074812,
 author = {ハリーズ, ジェームズ and Harries, James},
 month = {Mar},
 note = {We report the observation of superfluorescence at wavelengths of 469 nm, 164 nm and 30.4 nm from helium ions created and excited using pulses from the EUV free-electron laser at SACLA BL1. Experimental observations of intense, highly-directional emission (all 3 wavelengths) and a 1/(density) pulse delay dependence (469 nm emission), along with a detailed numerical simulation support our interpretations., 日本物理学会第74回年次大会},
 title = {ヘリウムイオンの FEL 励起に伴う超蛍光、ヨーク超蛍光、自由誘 導減衰、四光波混合},
 year = {2019}
}