|
|||||
|
|
Growth of Yb-doped YLiF4 laser crystal by the Czochralski method. Attempt of Yb energy level assignment and estimation of the laser potentiality |
|
| Authors: | A Bensalah Y Guyot M Ito A Brenier H Sato T Fukuda G Boulon |
| Affiliation: | a Physics and Chemistry of Luminescent Materials, UMR 5620 CNRS, Claude Bernard/Lyon1 University, 69622, Villeurbanne, France;b Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Aobaku, Katahira Sendai 980-8577, Japan |
| Abstract: | YLiF4 (YLF) single crystals undoped and Yb3+-doped with different concentrations were grown by the Czochralski technique under CF4 atmosphere. Detailed analysis of Yb3+-doped YLF spectroscopy were made to contribute to the determination of energy levels in this host. We are dealing with temperature and concentration dependences of both π and σ polarizations of the infrared (IR) absorption and emission spectra. Raman spectra were also used to give an attempt of interpretation of electronic and vibronic levels. The radiative energy transfer (self-trapping) and strong phonon–electron coupling make the assignment of Yb3+ energy levels difficult. Evaluation of the laser potentiality of this fluoride host is also presented. |
| Keywords: | Laser crystals Yb3+-doped YLiF4 Energy levels |
| 本文献已被 ScienceDirect 等数据库收录！ | |