Spectroscopy, upconversion dynamics, and applications of Er3+-doped low-phonon materials
Abstract
In this work I summarize some of the recent work carried out by our group on the upconversion dynamics of Er3+-doped potassium lead halide crystals, which possess very small phonons and present very efficient blue and green upconversion. Furthermore, a non-conventional application of these RE-doped low-phonon materials in optical refrigeration of luminescent solids is also discussed, paying especial attention to new pathways for optical cooling that include infrared-to-visible upconversion. Finally, I conclude with some hints of what I think it is the next step into improving the luminescence efficiency of solids: the use of RE-doped nanoscale photonic heterostructures for controlling the density of photonic states.
- Publication:
-
arXiv e-prints
- Pub Date:
- July 2007
- DOI:
- 10.48550/arXiv.0707.1434
- arXiv:
- arXiv:0707.1434
- Bibcode:
- 2007arXiv0707.1434G
- Keywords:
-
- Condensed Matter - Other;
- Condensed Matter - Materials Science
- E-Print:
- 8 pages, 7 figures. This is an extended version of another manuscript I wrote with occasion of the Michael D. Sturge prize 2007 (http://www.dpc07.org/). The shorter version of this paper will appear in an especial issue of Journal Luminescence