A second-harmonic of a copper vapor laser whichis output from an oscillatoramplifer system with a self-fliering unstable resonator is generated in BBO crystal by a line focus. The conversion efficiency reached 14. 4% at 5. 4 W fundamental power.是什么意思_A second-harmonic of a copper vapor laser whichis output from an oscillatoramplifer system with a self-fliering unstable resonator is generated in BBO crystal by a line focus. The conversion efficiency reached 14. 4% at 5. 4 W fundamental power.在线翻译_英语_读音_用法_例句