Abstract

Wavelength-resolved fluorescence excitation techniques have been used to record eight electronic transitions of LaF at a resolution of 0.03 cm−1. With few exceptions, Ω assignments were unambiguously determined from observations of the first lines in at least two rotational branches. Accurate term energies and rotational constants are reported. Ligand field-theory calculations and hyperfine constants were used to suggest configurational assignments for the excited states of LaF.

© 1994 Optical Society of America

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