C. Strohhöfer and A. Polman, Relationship between gain and Yb3+ concentration in Er3+-Yb3+ doped waveguide amplifiers, J. Appl. Phys. 90, 4314-4320 (2001)
S. Dettmer, D. Hellweg, P. Ryytty, J.J. Arlt, W. Ertmer, K. Sengstock, D.S. Petrov, G.V. Shlyapnikov, H. Kreutzmann, L. Santos and M. Lewenstein, Observation of phase fluctuations in elongated Bose-Einstein condensates, Phys. Rev. Lett. 87, (Article number: 160406), 1-4 (2001)
E.C. Minor, J.J. Boon, H.R. Harvey and A. Mannino, Estuarine organic matter composition as probed by direct temperature-resolved mass spectrometry and traditional geochemical techniques, Geochim. Cosmochim. Acta 65, 2819-2834 (2001)
M.J.A. de Dood, L.H. Slooff, A. Polman, A. Moroz and A. van Blaaderen, Local optical density of states in SiO2 spherical microcavities: Theory and experiment, Phys. Rev. A 64, (Article number: 33807), 1-7 (2001)
P.M. Paul, E.S. Toma, P. Breger, G. Mullot, F. Augé, P. Balcou, H.G. Muller and Pierre Agostini, Observation of a train of attosecond pulses from high harmonic generation, Science 292, 1689-1692 (2001)
L.H. Slooff, A. Polman, F. Cacialli, R.H. Friend, G.A. Hebbink, F.C.J.M. van Veggel and D.N. Reinhoudt, Near-infrared electroluminescence of polymer light-emitting diodes doped with a lissamine-sensitized Nd3+ complex, Appl. Phys. Lett. 78, 2122-2124 (2001)
G. Gabrielse, J. Estrada, J.N. Tan, P. Yesley, N.S. Bowden, P. Oxley, T. Roach, C.H. Storry, M. Wessels, D. Grzonka, W. Oelert, G. Schepers, T. Sefzick, W.H. Breunlich, M. Cargnelli, H. Fuhrmann, R. King, R. Ursin, J. Zmeskal, H. Kalinowsky, C. Wesdorp, J. Walz, K.S.E. Eikema and T.W. Hänsch, First positron cooling of antiprotons, Phys. Lett. B 507, (1-4), 1-6 (2001)
J.J. Boon, K. Keune, J. van der Weerd, M. Geldof and J.R.J. van Asperen de Boer, Imaging microspectroscopic, secondary ion mass spectrometric and electron microscopic studies on discoloured and partially discoloured smalt in crosssections of 16th century paintings, Chimia 55, 952-960 (2001)
