Tunable ultrashort laser pulses generated through filamentation in gases.
Tunable and stable ultrashort laser pulses in the visible spectrum are generated with high efficiency by four-wave mixing process during the filamentation of near-infrared and infrared laser pulses in gases. It is shown that these tunable ultrashort pulses have a very low energy fluctuation and an excellent mode quality due to the processes of intensity clamping and self-filtering in the filament.
Théberge
Francis
F
Centre d'Optique, Photonique et Laser, COPL, and Département de physique, de génie physique et d'optique, Université Laval, Québec, Québec G1K 7P4, Canada.
Aközbek
Neset
N
Liu
Weiwei
W
Becker
Andreas
A
Chin
See Leang
SL