@article{oai:oist.repo.nii.ac.jp:00001670,
 author = {Moroshkin, P. and Kono, K.},
 issue = {13},
 journal = {Physical Review B},
 month = {Apr},
 note = {We study the time evolution of the cloud of Dy atoms dispersed in superfluid helium and investigate the possibility of using these atoms as tracers for the imaging of superfluid-helium flows. The atoms are produced by pulsed laser ablation and are visualized via their laser-induced fluorescence. It turns out that the observation time is limited by the optical pumping of the atomic population into a nonabsorbing metastable state which is also responsible for the saturation of the fluorescence yield observed earlier.},
 title = {Imaging and time-resolved study of laser-induced fluorescence of dysprosium atoms injected into superfluid helium},
 volume = {101},
 year = {2020}
}