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1.	Bergstrom, H, et al. (author) Detection of carbon using amplified laser-induced fluorescence 1989 In: Chemical Physics Letters. - 0009-2614. ; 155, s. 27-31 Journal article (peer-reviewed)abstract Radiative lifetimes and stimulated emission have been studied in two-photon-excited carbon atoms. A strong fluorescence enhancement was detected in the direction of the exciting laser beam. Rate equations for the energy levels involved have been calculated in order to obtain number densities from the emitted light. Lifetimes were measured for the 2p3p 3p and 3D states and for the A 3[Pi]g state of the C2 molecule.
2.	Bergstrom, H, et al. (author) Investigations of radiative lifetimes in the 3p 5p configuration of neutral silicon 1989 In: Zeitschrift für Physik D Atoms, Molecules and Clusters. - 0178-7683. ; 13:1, s. 29-31 Journal article (peer-reviewed)abstract Lifetimes for the3S1,3P0, 1, 2 and3D1, 2, 3 states in the 3s23p5p configuration of silicon have been determined using stepwise dye laser excitation and time resolved detection. A comparison is made with theoretical values, calculated using multi-configuration Hartree-Fock wavefunctions. Laser-evaporation was used to produce free silicon atoms by focusing a Nd: YAG laser on a rotating silicon target.

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Author/Editor: Bergstrom, H (2); Persson, A. (2); Lundberg, Hans (2); Hallstadius, H (2); Faris, G. W (1)

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