Spectrometer for optical detection of magnetic resonance: Magneto-optical study of Yb3+ in BaF2 single crystal

Abstract

A home-built multifunctional computerized spectrometer for optical detection of magnetic resonance (ODMR) is described. Preliminary results of studying Yb 3 + ions in BaF, single crystal by electron paramagnetic resonance, ODMR and optical spectroscopy are presented.

EPR and optical spectroscopy of Yb3+ ions in CaF2 and SrF2

“…[8]. EPR experiments were carried out on modified an X-band spectrometer ERS-231 (Germany) [9] at 4.2 K. Optical spectra were recorded at T ¼ 2; 77 and 300 K on a home built multifunctional computerized spectrometer [10]. Luminescence in crystals was excited with a xenon lamp of 1 kW power.…”

Optical spectroscopy of Yb3+ in the Cs2NaYF6 single crystal

“…Electron paramagnetic resonance (EPR) experiments were carried out at T ¼ 4.2 K. The analysis of the EPR spectra has shown that Yb 3+ ions form one paramagnetic center of cubic symmetry (T c ) and substitute only for Y 3+ in Cs 2 NaYF 6 [12,13]. Optical spectra were registered on a homebuilt multifunctional spectrometer [14] at T ¼ 2, 77 and 300 K. The luminescence of the crystal was excited by the light of a xenon lamp (power 1 kW). Luminescence excitation spectra were corrected on the spectrum of the lamp radiation.…”

EPR and optical spectroscopy of Yb3+ ions in CaF2: an analysis of the structure of tetragonal centers

“…The optical measurements were car¡ out on CaF 2 crystals with YbF 3 or Yb203 concentrations C of 0.01%, 0.1% and 0.2%. The measurements were carried out on a modified ERS-231 spectrometer (Berlin, Center for Scientific Instrument) [12] at T= 4.2 K. Optical spectra at T = 2, 77 and 300 K were recorded on a homebuilt multifunctional spectrometer [13]. The luminescence of the crystals was excited by the output of a xenon lamp (powš of 1 kW), passing through a red glass filter.…”