Abstract
A universal method has been developed for measuring spectra of molecular ions in a 22-pole radio frequency trap at 5 K. It is based on laser induced inhibition of complex growth (LIICG). The first successful measurements have been demonstrated on the A2Πu←X2Σg+ electronic transition with some thousand N2+ ions, helium densities of 10 15 cm−3, and storage times of 1 s. The reduction of the number of N2+−He complexes isthe result of an interplay between excitation, radiative and collisional cooling, ternary association, and collision induced dissociation, which is explained by a kinetic model.
Original language | English |
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Pages (from-to) | 4051-4054 |
Journal | The Journal of Physical Chemistry Letters |
Volume | 4 |
Issue number | 23 |
Early online date | 7 Nov 2013 |
DOIs | |
Publication status | E-pub ahead of print - 7 Nov 2013 |