Energy-transfer upconversion in $Al_2O_3:Er^3+$ thin layers

Worhoff K; Bradley J; Agazzi L; Geskus D; Ay F; Kahn A; Scheife H; Petermann K; Huber G; Pollnau M

Eurasip Journal on Wireless Communications and Networking - EURASIP J WIREL COMMUN NETW, , ,