Abstract
Tunable coherent ultraviolet radiation has been used to excite selectively the level in hydrogen and deuterium atoms via two-photon absorption from the ground state. The resulting Balmer- fluorescence at 656 nm was observed as well as resonant three-photon ionization. This work demonstrates several advantages over other techniques for selective detection of neutral H and D atoms, including three-dimensional spatial resolution and a remote monitoring capability afforded by the use of laser-induced-fluorescence detection.
- Received 20 April 1981
DOI:https://doi.org/10.1103/PhysRevA.24.612
©1981 American Physical Society