| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1692108 | Optical Materials | 2016 | 6 Pages |
Abstract
This paper presents electron paramagnetic resonance and detailed optical spectroscopic characterization of CaB4O7 glasses doped with Cr3+. The luminescence excitation spectrum consists of two broad bands related to transitions from the ground state 4A2g to the excited states 4T1g and 4T2g of the octahedrally coordinated Cr3+ ions. The photoluminescence spectrum is a superposition of the R line related to the 2Eg â 4A2g transition and broad band related to the 4T2g â 4A2g transition. The analysis of electron paramagnetic resonance spectra allowed to distinguish different Cr3+ sites, whereas the analysis of luminescence and luminescence excitation spectra allowed to characterize the crystal field distribution in the glass host.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
T. Lesniewski, B.V. Padlyak, J. Barzowska, S. Mahlik, V.T. Adamiv, Z. Nurgul, M. Grinberg,