Spectroscopy, upconversion dynamics, and applications of Er3+-doped low-phonon materials

Details Spectroscopy, upconversion dynamics, and applications of Er3+-doped low-phonon materials Spectroscopy, upconversion dynamics, and applications of Er3+-doped low-phonon materials

2007-07-10

arxiv.org/abs/0707.1434v1

Physics

Condensed Matter

Other Condensed Matter

8 pages, 7 figures. This is an extended version of another manuscript I wrote with occasion of the Michael D. Sturge prize 200

Scientific paper

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.

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