Two photon laser induced fluorescence of carbon atoms

Abstract
Carbon atoms were generated by two photon absorption in carbon suboxide C3O2. Two photon laser induced fluorescence (LIF) excitation spectra using the 3 3DJ←2 3PJ at 287 nm and 4 1P1←2 1D2 at 284 nm transitions were intense showing that LIF is a convenient detection method for carbon atoms in their ground 3P and first excited 1D states. Calculated values of the relative intensities of the seven allowed J′←J″ transitions were in good agreement with experimental values.