Title :
Multiple re-focusing of ultrashort laser pulse propagating in condensed matter
Author :
Liu, W. ; Chin, S.L.
Author_Institution :
Centre d´Optique, Photonique et Laser, Laval Univ., Que., Canada
Abstract :
We focused a 38 fs laser pulse, which is spatially filtered, into a glass cell containing a very dilute solution of coumarin 440 in methanol. Via three photons fluorescence of coumarin, up to 6 re-focusing filaments were observed along one straight line. This is the first evidence showing a way to control multiple filamentation.
Keywords :
fluorescence; high-speed optical techniques; optical focusing; organic compounds; spatial filters; 38 fs; condensed matter; coumarin; dilute solution; fluorescence; methanol; multiple filamentation; multiple refocusing; refocusing filaments; spatial filtering; ultrashort laser pulse; Fluorescence; Focusing; Glass; Methanol; Optical filters; Optical propagation; Optical pulse generation; Optical pulses; Optical refraction; Ultrafast optics;
Conference_Titel :
Quantum Electronics and Laser Science, 2003. QELS. Postconference Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-749-0
DOI :
10.1109/QELS.2003.238110
