16 μ and 8.5 μ generated via stimulated Raman process in potassium vapor

Abstract
16‐μ and 8.5‐μ tunable lasing outputs were obtained from two sequential stimulated Raman scattering processes in K vapor using two visible dye lasers concurrently. Greater than 10 mW of 16‐μ output was obtained for a 1‐kW pump power. Tuning range of 2–4 cm−1 was observed. Kinetic information on the quenching of the 4P levels of K was deduced from the 16‐μ signal amplitudes as a function of the delay time between the two lasers.