2004•Unpublished venueRequires access

Femtosecond-laser-induced alignment in coulomb explosion of nitrogen molecules

K. Miyazaki, Tatsuo Shimizu, M. Nakamaura, Kazuyoshi Masuda, D. Normand

Abstract

Coulomb explosion dynamics of N/sub 2/ was studied using 40-fs, 800-nm Ti:sapphire laser pulses at the intensity of 10/sup 14/-10/sup 16/ W/cm/sup 2/. The results suggest that above the critical intensity of /spl sim/10/sup 15/ W/cm/sup 2/ 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.

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Key concepts: Coulomb explosion, Ionization, Femtosecond, Laser, Atomic physics, Sapphire, Fragmentation (computing), Polarization (electrochemistry)