Two-dimensional phase-conjugate imaging of atomic distributions in flames by degenerate four-wave mixing

Opt Lett. 1989 Jun 1;14(11):563-5. doi: 10.1364/ol.14.000563.

Abstract

We report the demonstration of a technique using resonant degenerate four-wave mixing to produce high-resolution, background-free images of atomic distributions in flames. Comparison with laser-induced-fluorescence methods and applications of the method to species of interest in combustion are briefly discussed.