Title :
Time-resolved two-color interferometric imaging for femtosecond laser-induced breakdown in water
Author :
Abraham, E. ; Minoshima, K. ; Matsumoto, H.
Author_Institution :
Nat. Res. Lab. of Metrol., Ibaraki, Japan
fDate :
Aug. 30 1999-Sept. 3 1999
Abstract :
Laser-induced breakdown (LIB) in liquids is of special interest due to its potential application in medicine. We have developed a fs two-color interferometer using an amplified mode-locked Ti:Al/sub 2/O/sub 3/ laser with 100 fs pulse width. we investigated the optical breakdown induced in water in a plane perpendicular to the direction of the pump beam. We identified and analyzed the formation and expansion of the LIB in fs, ps and ns time scales.
Keywords :
high-speed optical techniques; laser beam effects; light interferometers; light interferometry; water; 100 fs; Al/sub 2/O/sub 3/:Ti; amplified mode-locked Ti:Al/sub 2/O/sub 3/ laser; femtosecond laser-induced breakdown; frequency doubling crystal; optical breakdown; phase shift; second harmonic beams; time-resolved two-color interferometric imaging; two-color interferometer; very hot dense plasma; water; Biomedical imaging; Electric breakdown; Laser excitation; Laser mode locking; Liquids; Optical imaging; Optical interferometry; Optical pulses; Pump lasers; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on
Conference_Location :
Seoul, South Korea
Print_ISBN :
0-7803-5661-6
DOI :
10.1109/CLEOPR.1999.811388
