
doi: 10.1039/b612324d
pmid: 17047761
We demonstrate a hybrid Doppler-free/Doppler-sliced ion imaging approach that is well-suited for detection of H or D atoms. The method relies on 2 + 1 resonant ionization with identical, nearly counterpropagating beams that are coplanar but directed at a small angle relative to the detector face. This results in Doppler selection of the velocity component along the time of flight axis but Doppler-free detection in the plane perpendicular to this axis. The results show high signal level and excellent slicing ( approximately 5%), yielding velocity resolution completely determined by cation recoil in the ionization step.
Ions, Lasers, Pulsatile Flow, Radiation, Ionizing, Doppler Effect, Image Enhancement, Hydrogen
Ions, Lasers, Pulsatile Flow, Radiation, Ionizing, Doppler Effect, Image Enhancement, Hydrogen
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