Feasibility of constructing an absorption cell tuned to λ = 1315 nm

Experiments indicated that the concentration of nonexcited iodine atoms during the pyrolysis stage of the photolysis of perfluoroalkyl iodides could reach (2–5)×10¹⁷ cm^–3. The velocities of pyrolysis and compression waves were determined in a thick perfluoroalkyl iodide layer. The pyrolysis wave was considerably faster than the compression wave. An analysis was made of the possibility of using a pyrolysis wave to create a medium absorbing at λ = 1315 nm in a flash absorption cell.