The second spectrum of ytterbium.

Xiaohang Zhang, Min Zhou, Ning Chen +10 more

Study on the clock-transition spectrum of cold 171Yb ytterbium atoms, Zhang, Xiaohang, Zhou, Min, Chen, Ning, Gao, Qi, Han, Chengyin, Yao, Yuan, Xu, Peng, Li, Shangyan, Xu, Yilin, Jiang, Yanyi, Bi, Zhiyi, Ma, Longsheng, Xu, Xinye

Nan Yu, Lute Maleki

Aleksandr I. Gomonai

The three-photon ionization spectrum of ytterbium atoms in the interval 16814.4–18100.0 cm−1 has been studied. In addition to the resonance maxima related to the one- and two-photon excitations of bound states, the maxima originated from the three-photon excitation of autoionizing states are observed. Two new odd autoionizing levels with energies of 51866.1 and 51914.1 cm−1 are discovered.

M. Y. Mirza, W. W. Duley

K. Bollweg, G. H. Guthöhrlein, Laurentius Windholz

In carrying out laser-induced fluorescence experiments within a low pressure discharge containing ytterbium atoms we observed a remarkable behavior of the fluorescence phases relative to the laser modulation of a three level subsystem in the ytterbium atomic spectrum. (The detected fluorescence radiation lies in the near infrared region, accessible both to a standard fourier spectrometer and a grating spectrometer). The effect will be discussed and modelled.

Brandon Ruzic, Melissa Revelle, Peter Maunz