Title :
Noninvasive ultrafast imaging diagnostics in low-temperature plasmas
Author :
Kulatilaka, Waruna D. ; Schmidt, Jacob B. ; Roy, Sandip ; Frederickson, Kraig A. ; Lempert, Walter R. ; Gord, James R.
Author_Institution :
Spectral Energies LLC, Dayton, OH, USA
Abstract :
We demonstrate utilization of femtosecond-duration laser pulses for two-photon-absorption LIF imaging of atomic species in nonequilibrium plasmas. Femtosecond excitation enables improved signal-to-noise ratio, suppression of photolytic interferences, kilohertz-rate imaging, and potential for collisional quenching-free measurements.
Keywords :
plasma diagnostics; plasma light propagation; atomic species; collisional quenching-free measurements; femtosecond excitation; femtosecond-duration laser pulses; kilohertz-rate imaging; low-temperature plasmas; nonequilibrium plasmas; noninvasive ultrafast imaging diagnostics; photolytic interferences; signal-to-noise ratio; two-photon-absorption LIF imaging; Atomic beams; Atomic measurements; Fluorescence; Imaging; Measurement by laser beam; Plasma measurements; Plasmas;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
