@article{oai:repo.qst.go.jp:00048025,
 author = {錦野, 将元 and 長谷川, 登 and 河内, 哲哉 and 錦野 将元 and 長谷川 登 and 河内 哲哉},
 issue = {1},
 journal = {AIP Advances},
 month = {Jan},
 note = {The initial stages of the femtosecond (fs) laser ablation process of gold, platinum, and tungsten were observed by single-shot soft x-ray imaging technique. The formation and evolution of soft x-ray Newton's rings (NRs) were found for the first time. The soft x-ray NRs are caused by the interference between the bulk ablated surface and nanometer-scale thin spallation layer; they originate from the metal surface at pump energy fluence of around 1 J/cm^2 and work as a flying soft x-ray beam splitter.},
 pages = {015311-1--015311-5},
 title = {Formation of x-ray Newton’s rings from nano-scale spallation shells of metals in laser ablation},
 volume = {7},
 year = {2017}
}