doi.org/10.1063/1.1640459
J. Appl. Phys.
Photonic Materials

Kalkman, J., de Bres, E., Polman, A., Jun, Y., Norris, D. J., 't Hart, D. C., … van Blaaderen, A. (2004). Selective excitation of erbium in silicon-infiltrated silica colloidal photonic crystals. J. Appl. Phys., 95, 2297–2302. doi:10.1063/1.1640459