EXTREME-ULTRAVIOLET STUDIES WITH LASER-PRODUCED PLASMAS

A new multilaser multichannel spectrometer system has been developed t hat allows a wide range of investigations of the interaction of extrem e-ultraviolet (EUV) photons with matter in the form of free atoms or i ons, e.g., in gases or plasmas or bound as in solids. The EUV photons are generated by a laser-produced plasma. Applications to the study of photoabsorption by thin foils, gases, and ground- and excited-state a toms and ions are described. The design and performance of a collimate d, quasi-monochromatic, intense source of EUV radiation based on the c ombination of a laser-produced plasma with a EUV multilayer mirror is also reported.