J.S. Custer, A. Polman, E. Snoeks and G.N. van den Hoven: High concentrations of erbium in crystal silicon by thermal or ion-beam-induced epitaxy of erbium-implanted amorphous siliconIn: Rare Earth Doped Semiconductors /ed. G.S. Pomrenke, P.B. Klein and D.W. Langer, Pittsburgh: MRS, 1993. - pp. 101-105
G.N. van den Hoven, E. Snoeks, A. Polman, J.W.M. van Uffelen, Y.S. Oei and M.K. Smit, Photoluminescence characterization of Er-implanted Al2O3 films, Appl. Phys. Lett. 62, 3065-3067 (1993)
G.N. van den Hoven, E. Snoeks, A. Polman, J.W.M. van Uffelen, Y.S. Oei and M.K. Smit: High concentration optical doping of Al2O3 waveguide films by Er ion implantationIn: Proceedings of the 6th European Conference on Integrated Optics (ECIO'93) and Technical Exhibit, April 18-22, 1993, Neuchâtel, Switzerland /ed. P. Roth, [s.n.], 1993.
A.G. Cullis, A. Polman, P.W. Smith, D.C. Jacobson, J.M. Poate and C.R. Whitehouse, The nature of keV and MeV ion damage in AlxGa1-xAs/GaAs and AlAs/GaAs heterostructures, Nucl. Instrum. Methods Phys. Res., Sect B 62, 463-468 (1992)
A. Polman, M.A. Marcus, D.C. Jacobson and J.M. Poate: Local structure around Er in MeV Er-implanted silicaIn: Optical Waveguide Materials : Symposium held December 2-4, 1991, Boston, Massachusette, U.S.A. /ed. M.M. Broer, G.H. Sigel, R.Th. Kersten and H. Kawazoe, Materials Research Society, 1992. - pp. 381-386
A.G. Cullis, D.C. Jacobson, A. Polman, P.W. Smith, J.M. Poate and C.R. Whitehouse: The energy dependence of ion damage in AlxGa1-xAs/GaAs heterostructures and the effects of implanted impurityIn: Phase Formation and Modification by Beam-Solid Interactions : Symposium held December 2-6, 1991, Boston, Massachusetts, U.S.A. /ed. G.S. Was, L.E. Rehn and D.M. Follstaedt, Materials Research Society, 1992. - pp. 229-234
J.S. Custer, E. Snoeks and A. Polman: Photoluminescence of erbium in amorphous silicon: Structural relaxation and optical dopingIn: Phase Formation and Modification by Beam-Solid Interactions : Symposium held December 2-6, 1991, Boston, Massachusetts, U.S.A. /ed. G.S. Was, L.E. Rehn and D.M. Follstaedt, Materials Research Society, 1992. - pp. 51-56
A. Polman, D.C. Jacobson and J.M. Poate: Erbium-defect interactions in silica films implanted with MeV Er ionsIn: Phase Formation and Modification by Beam-Solid Interactions : Symposium held December 2-6, 1991, Boston, Massachusetts, U.S.A. /ed. G.S. Was, L.E. Rehn and D.M. Follstaedt, Materials Research Society, 1992. - pp. 377-382
C.A. Volkert and A. Polman: Radiation-enhanced plastic flow of covalent materials during ion irradationIn: Phase Formation and Modification by Beam-Solid Interactions : Symposium held December 2-6, 1991, Boston, Massachusetts, U.S.A. /ed. G.S. Was, L.E. Rehn and D.M. Follstaedt, Materials Research Society, 1992. - pp. 3-14