Heng, Chenglin; Zalloum, Othman H.; Chelomentsev, Evgueni; Mascher, Peter
(2007)
We have studied photoluminescence (PL) from SiO2 films co- doped with (Er, Ge) deposited by magnetron sputtering of an Er+Ge+SiO2 composite target in pure Ar ambient. Under excitation of a 325 nm He-Cd laser line, blue ...