Abstract
We have measured the two-photon
Resonance-Enhanced Multiphoton Ionization (REMPI) spectrum of H
by producing the hydrogen molecule via photolysis of H
CO. H
is produced with rovibrational energies up to 30,000 cm
, at a maximum observed
of (9,5). In the well-resolved jet-cooled H
CO spectrum, ortho and para H
are selectively produced with near 100% selectivity. Over 470 REMPI transitions were identified in the EF−X band system, many of which have not been seen previously, including transitions to EF levels not yet accurately measured. Speed distributions were obtained for each REMPI transition using Velocity-mapped imaging, aiding in the assignment by providing a precise measurement of the internal energy of the H
molecule.
GRAPHICAL ABSTRACT
![](/cms/asset/d0b45f2c-c276-40ec-9d4b-a5c91ee9cc7d/tmph_a_1836412_uf0001_oc.jpg)
Acknowledgments
Funding was provided by the Australian Research Council (DP190102013). MSQ was supported by an Australian Postgraduate Award.
Disclosure statement
No potential conflict of interest was reported by the author(s).