A comparative study of dissociation and ionization of isoelectronic N$_{2}^{+ }$and CO$^{+}$ molecular ions in an ultrafast intense laser field.
POSTER
Abstract
The response of the molecular ion beams N$_{2}^{+ }$and CO$^{+}$ to intense (up to 5$\times $10$^{15}$ W/cm$^{2})$ ultrashort laser pulses (10 and 45 fs) at 790 nm wavelength is investigated. For this purpose, we employ a coincidence 3D momentum imaging method to separate all breakup channels and then obtain kinetic energy release spectra and angular distributions of each of the channels. In particular, we will make a direct comparison between N$_{2}^{+}$ and CO$^{+}$ fragmentation focusing on the similarities and differences of these two molecules that share similar electronic configurations. The relative branching ratios of all the relevant breakup channels will also be discussed.
*Supported by the Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy.