Single-shot imaging of ground-state hydrogen atoms with a nonlinear laser spectroscopic technique

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Abstract

We report on a novel nonlinear laser spectroscopic technique for single-shot imaging of ground-state hydrogen atoms in harsh environments. H atoms from the ground state were first pumped to the 2s state via a two-photon excitation with a 243 nm laser beam, and the population of the 2s state was further probed through the 2s-4p transition with conventional polarization spectroscopy at 486 nm. A single Nd:YAG-pumped optical parametric oscillator laser system was enough to provide both laser beams. Single-shot visualization of native H atoms in an atmospheric pressure premixed H-2/O-2 flame is demonstrated. (C) 2007 Optical Society of America

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  • Atom and Molecular Physics and Optics
Original languageEnglish
Pages (from-to)1569-1571
JournalOptics Letters
Volume32
Issue number11
Publication statusPublished - 2007
Publication categoryResearch
Peer-reviewedYes