Systems for generating broadband radiation by rotational stimulated Raman scattering in atmospheric nitrogen

It is proposed to generate broadband radiation by stimulated Raman scattering from rotational levels of atmospheric nitrogen under conditions of a strong parametric coupling with the pump radiation provided by a high-power two-frequency neodymium laser. Various ways of constructing such a two-frequency laser are proposed. It is shown that up to 20 Raman components can be generated if the intensities of the lines, separated by the 76 cm^-1 frequency of the S₀(8) transition in nitrogen, are 2 GW cm^-2 and the length of the air path is 20 m.