authors
- Bradley, Jonathan
- Kahn, A
- Scheife, H
- Petermann, K
- Huber, Guenter
- M, Ridder
- Worhoff, Kerstin
- Pollnau, M
- Agazzi, Laura
- Ismail, Nur
- Leijtens, X
Upconversion spectroscopy of $Al_2O_3:Er^3+$
Journal Articles
- Overview