P. T. Lin, M. Vanhoutte, and J. Hu, "Temperature-enhanced light emission from Er-TeO2 Photonic Crystals,"
in Advanced Photonics,
OSA Technical Digest (CD)
(Optical Society of America, 2011), paper IMF6.
Photonic crystals are fabricated in Er-doped TeO2 films. Strong photoluminescence around 1530 nm is observed by 488-532 nm laser pumping. 98x enhanced emission is demonstrated after annealing the thin films at 600C.