Related Experiment Video
Updated: Jun 19, 2026

Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
Published on: April 14, 2020
Abstract:
Spectral hole burning is reported for the trivalent thulium ion with measurements on the (3)H(6)(1) ? (3)H(4)(1) transition of LaF(3):Tm(3+) and two sites (A and B) of CaF(2):Tm(3+) at 1.5 K. Hole burning occurs by population storage in the metastable (3)F(4) level. The holes were scanned by an electric-field ramp applied directly to the sample, the frequency being calibrated by burning multiple holes with a frequency-modulated laser. This yielded the hole widths as well as the Stark coefficients for the transition studied, which are 8.3 kHz/V cm(-1) parallel to the C(2) axis (LaF(3):Tm(3+)) and for CaF(2):Tm(3+) are 25 kHz/V cm(-1) (site A), and 4.6 kHz/V cm(-1) (site B) for fields along the (001) direction. From the polarization behavior of the holes, the sites in CaF(2) are assigned to the F(-)-compensated C(4nu) and C(3nu) sites, respectively.
More Related Videos
06:16Phase-Dependent Control of Trap Depth and Persistent Luminescence in Strontium Aluminate Phosphors
Published on: December 5, 2025
09:40Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown
Published on: February 14, 2014
Related Concept Videos
UV–Vis Spectroscopy: Molecular Electronic Transitions
Atomic Spectroscopy: Absorption, Emission, and Fluorescence
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
Emission Spectra
Crystal Field Theory - Tetrahedral and Square Planar Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
Atomic Emission Spectroscopy: Lab