Title :
Direct interferometric measurements of the acoustic waves from femtosecond filaments
Author :
Wahlstrand, J.K. ; Jhajj, N. ; Rosenthal, E.W. ; Zahedpour, S. ; Milchberg, H.M.
Author_Institution :
Inst. for Res. in Electron. & Appl. Phys., Univ. of Maryland, College Park, MD, USA
Abstract :
Interferometric measurements of submicrosecond gas density dynamics following passage of an intense ultrashort pulse are presented for single- and multi-lobed beams at 10 Hz and 1 kHz. Results are in excellent agreement with hydrodynamic simulations.
Keywords :
hydrodynamics; laser beams; light interferometry; plasma density; plasma diagnostics; plasma ion acoustic waves; plasma light propagation; plasma simulation; acoustic waves; direct interferometric measurements; femtosecond filaments; frequency 1 kHz; frequency 10 Hz; hydrodynamic simulations; intense ultrashort pulse; multi-lobed beams; single-lobed beams; submicrosecond gas density dynamics; Acoustic beams; Acoustic measurements; Acoustic waves; Density measurement; Laser beams; Measurement by laser beam; Refractive index;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
