화학공학소재연구정보센터
Chemical Physics Letters, Vol.433, No.4-6, 439-443, 2007
Doppler-free ion imaging of hydrogen molecules produced in bimolecular reactions
We report on the use of two-color Doppler-free [(1 + 1') + 1/1'] resonance enhanced multiphoton ionization (REMPI) for three-dimensional imaging of state-selected product molecules from bimolecular reactions. We demonstrate the viability of this method by measuring differential cross sections for the reaction H + D-2 -> D + HD(nu' = 1,j' = 1,5,8) at 1.7 eV collision energy. We achieve higher resolution allowing us to observe oscillations that were not resolved by previous experiments; these oscillations agree closely with quantum mechanical calculations. (c) 2006 Elsevier B.V. All rights reserved.