Title :
Femtosecond-laser-induced alignment in Coulomb explosion of nitrogen molecules
Author :
Miyazaki, K. ; Shimizu, T. ; Nakamaura, M. ; Masuda, K. ; Normand, D.
Author_Institution :
Inst. of Adv. Energy, Kyoto Univ., Japan
Abstract :
Coulomb explosion dynamics of N2 was studied using 40-fs, 800-nm Ti:sapphire laser pulses at the intensity of 1014-1016 W/cm2. The results suggest that above the critical intensity of ∼1015 W/cm2 the highly-ionized fragmentation channels tend to be aligned along the laser polarization before explosion, while neutral and singly-ionized molecules are never aligned in the explosion.
Keywords :
high-speed optical techniques; laser beam effects; light polarisation; nitrogen; photodissociation; photoionisation; sapphire; solid lasers; titanium; 4 fs; 800 nm; Al2O3:Ti; N2; Ti:sapphire laser pulses; femtosecond-laser-induced alignment; highly-ionized fragmentation channels; laser polarization; neutral ionized molecules; nitrogen molecules Coulomb explosion dynamics; singly-ionized molecules; Anisotropic magnetoresistance; Explosions; Frequency conversion; Gas lasers; Gases; Ionization; Leak detection; Nitrogen; Optical pulses; Polarization;
Conference_Titel :
Lasers and Electro-Optics, 2003. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on
Print_ISBN :
0-7803-7766-4
DOI :
10.1109/CLEOPR.2003.1274635
