Mid-infrared emissions of Dy
We report on a comprehensive spectroscopic study of singly Dy3+ doped and Er3+,Dy3+ codoped calcium fluoride (CaF2) crystals for mid- infrared laser applications. The f-f transition probabilities of Dy3+ were determined by the Judd-Ofelt theory. The stimulated-emission cross-section reaches 0.25×10-20 cm2 at 2.93 µm corresponding to an emission bandwidth of 350 nm. The Er3+ → Dy3+ energy transfer efficiency in codoped crystals is quantified. The 4.4-µm Dy3+ emission is observed for the first time from fluoride crystals.
Authors
- Е. Б. Дунина (ORCID: https://orcid.org/0000-0002-7222-9790)
- Patrice Camy
- Abdelmjid Benayad
- Liudmila Fomicheva
- Alain Braud
- Aleksei Kornienko
- Ngoc Hoang Minh Nguyen
- Pavel Loiko
Publication Details
- Journal
- Springer Link (Chiba Institute of Technology)
- Published
- 2025-09-22
- DOI
- https://doi.org/10.1051/epjconf/202533508012/pdf
- Primary Topic
- Solid State Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00