Radiative lifetimes measured with time-resolved laser-induced fluorescence are reported for 39 odd-parity levels and 42 even-parity levels of Ho I and 37 even-parity levels of Ho II. The levels of Ho I range in energy from 17 000 to 41 000 cm<sup>−1</sup>, and those of Ho II from 20 000 to 38 000 cm<sup>−1</sup>. These lifetimes, with some exceptions, are accurate to ∓5%.
© 1999 Optical Society of America
(020.4900) Atomic and molecular physics : Oscillator strengths
(300.2530) Spectroscopy : Fluorescence, laser-induced
(300.6210) Spectroscopy : Spectroscopy, atomic
(300.6500) Spectroscopy : Spectroscopy, time-resolved
E. A. Den Hartog, L. M. Wiese, and J. E. Lawler, "Radiative lifetimes of HoI and HoII," J. Opt. Soc. Am. B 16, 2278-2284 (1999)