Spectroscopic study of plasmahyphen;assisted laser deposition of Yhyphen;Bahyphen;Cuhyphen;O

摘要

Photoluminescence spectroscopy of the plasma plume during plasmahyphen;assisted laser deposition of YBa2Cu3O7minus;xwas performed. The spectrum in the range of 355ndash;900 nm was measured at several spatial positions using an optical multichannel analyzer. It was found that both atomic and molecular components were present. Rich emission lines of O, O+, Y, Y+, Ba, Ba+, and Cu were observed, from which the plasma temperature could be estimated. Cu+emission was conspicuously absent. The mechanism of the plasma process and its relevance to thinhyphen;film formation is discussed.