L.H. Slooff, M.J.A. de Dood, A. van Blaaderen and A. Polman, Effects of heat treatment and concentration on the luminescence properties of erbium-doped silica sol-gel films, J. Non-Cryst. Solids 296, 158-164 (2001)
A. Polman, Erbium-doped silicon opto-electronics: Research summary, reprints of publications that appeared in the period February 1993-April 2000 (2000)
P.G. Kik, Energy transfer in erbium doped optical waveguides based on silicon = Energie overdracht in erbium gedoteerde lichtgeleiders gebaseerd op silicium, Utrecht University, 2000-09-18
C. Strohhöfer, P.G. Kik and A. Polman, Selective modification of the Er3+ 4I11/2 branching ratio by energy transfer to Eu3+, J. Appl. Phys. 88, 4486-4490 (2000)
A. Polman: Exciting erbium-doped planar optical amplifier materialsIn: Thin Films for Optical Waveguide Devices and Materials for Optical Limiting, Symposia held November 30-December 3, 1999, Boston, MA, U.S.A. /ed. K. Nashimoto, Pittsburgh: MRS, 2000. - pp. 3-14
E. Snoeks, A. van Blaaderen, T. van Dillen, C.M. van Kats, M.L. Brongersma and A. Polman, Colloidal ellipsoids with continuously variable shape, Adv. Mater. 12, 1511-1514 (2000)
T.M. Hensen, M.J.A. de Dood and A. Polman, Luminescence quantum efficiency and local optical density of states in thin film ruby made by ion implantation, J. Appl. Phys. 88, 5142-5147 (2000)