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Digitale Medien

Spectra, radiative lifetimes, and band oscillator strengths of the A 1Π–X 1Σ+ transition of BH (1989)

Douglass, C. H. ; Nelson, H. H. ; Rice, Jane K.

College Park, Md. : American Institute of Physics (AIP)

The Journal of Chemical Physics 90 (1989), S. 6940-6948

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ISSN: 1089-7690

Quelle: AIP Digital Archive

Thema: Physik , Chemie und Pharmazie

Notizen: We report new spectroscopic information on the A 1Π–X 1Σ+ transition of BH including the observation of the 0–1 and 1–2 bands using laser induced fluorescence (LIF) techniques. Ratios of Einstein coefficients, band oscillator strengths and transition probabilities have been obtained for the 0–1 compared to the 0–0 band and the 1–0 and 1–2 compared to the 1–1 band. These ratios indicate that the emission observed occurs predominantly within the diagonal elements. Additionally, the radiative lifetimes of the v'=0, 1, and 2 levels have been measured to be 127±10, 146±12, and 172±14 ns, respectively. Using the ratios above and the experimental lifetimes, we have obtained Einstein emission coefficients and band absorption oscillator strengths. These values are compared to several calculations from the literature and in some instances large differences are seen.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.456269

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