Abstract
Recent experiments using degenerate four-wave mixing (DFWM) to detect minor species have demonstrated that this technique has outstanding potential as a diagnostic tool.1-3 The coherent nature of the generated signal beam results in high collection efficiency and permits efficient stray light rejection. These coherence properties together with the one-photon-resonant nature of the technique allows sensitive detection even in luminous environments. Although high sensitivity is important, the ultimate usefulness of DFWM as a diagnostic technique relies on the ability to quantitatively interpret experimental spectra.
© 1991 Optical Society of America
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