Fluorine‐atom probe techniques for chemical lasers

The infrared absorption coefficient and Raman scattering cross sections of the fluorine‐atom 2P3/2→2P1/2 transition at 404 cm−1 are estimated. The results are discussed in terms of probing fluorine‐atom concentrations in chemical lasers. It is shown that absorption and coherent anti‐Stokes Raman scattering can give sensitivity better than 1015 atoms/cm3.