Generation of highhyphen;energy atomic beams in laserhyphen;superconducting target interactions

摘要

Highhyphen;energy atomic beams with Mach numbers as high as 5 were observed in excimer laserhyphen;superconducting target interactions. The velocity distributions of the Y, Ba, Cu, and O atoms and ions could be described very well by a supersonic expansionhyphen;type mechanism similar to a molecule beam. The physics of the atomic beam formation process is discussed.