partly funded by the National Natural Science Foundation of China (Grant Nos. 10525416,10804032,and 10990101);the National Basic Research Program of China (Grant No. 2006CB806005);Projectsfrom Shanghai Science and Technology Commission (Grant Nos.08ZR1407100 and 09QA1402000);Shanghai Educational Development Foundation (Grant No. 2008CG29)
The molecular wake-assisted interaction between two collinear femotosecond laser pulses is investigated in air,which leads to the generation of a controllable 1.8 mJ super-continuum pulse with an elongated self-guided...