Design of an ultrashort-pulse multipass amplifier and investigations of femtosecond optical breakdown
Date of Completion
Development, diagnosis and applications of an ultrafast laser system are presented in this dissertation. This unique Ti:Sapphire laser system is capable of providing 25 fs millijoule-level transform-limited pulses. A novel laser diagnosis system, called dispersion free TG FROG, is designed to completely characterize these ultrashort pulses. The dynamics of femtosecond optical breakdown, was investigated for the first time using a new pump-probe technique with this laser system. The experimental results indicate that the plasma energy decay during the femtosecond optical breakdown is an ultrafast process (∼100 fs). This new discovery changes the whole picture of the breakdown process. It is important to both basic physics as well as industrial applications. ^
Li, Ming, "Design of an ultrashort-pulse multipass amplifier and investigations of femtosecond optical breakdown" (1999). Doctoral Dissertations. AAI9926262.