Observation of the hyperfine structure and anticrossings of hyperfine levels in the luminescence spectra of LiYF4:Ho3+  

作　　者：KIRILL N.BOLDYREV BORIS Z.MALKIN MARINA N.POPOVA 

机构地区：[1]Institute of Spectroscopy,Russian Academy of Sciences,Troitsk,Moscow 108840,Russia [2]Kazan Federal University,Kazan 420008,Russia

出　　处：《Light(Science & Applications)》2022年第9期2155-2165,共11页光（科学与应用)（英文版）

基　　金：support from the Russian ScienceFoundation under Grant#19-72-10132.M.N.P.was supported by the Ministry of Science and Higher Education.of Russia(Grant 0039-2019-0004).

摘　　要：Resolved hyperfine structure and narrow inhomogeneously broadened lines in the optical spectra of a rare-earth-doped crystal are favorable for the implementation of various sensors.Here,a well-resolved hyperfine structure in the photoluminescence spectra of LiYF4:Ho single crystals and the anticrossings of hyperfine levels in a magnetic field are demonstrated using a self-made setup based on a Bruker 125HR high-resolution Fourier spectrometer.This is the first observation of the resolved hyperfine structure and anticrossing hyperfine levels in the luminescence spectra of a crystal.The narrowest spectral linewidth is only 0.0022 cm-1.This fact together with a large value of the magnetic g factor of several crystal-field states creates prerequisites for developing magnetic field sensors,which can be in demand in modern quantum information technology devices operating at low temperatures.Very small random lattice strains characterizing the quality of a crystal can be detected using anticrossing points.

关 键 词：SPECTRA LUMINESCENCE HYPERFINE 

分 类 号：O56[理学—原子与分子物理]