BEAMS OF MOLECULAR IONS IN INTENSE LASER FIELDS P. McKenna(a),A. Al-Zein(b),W.A. Bryan(b), B.Srigengan(a),J.H. Sanderson(b),I.D. Williams(a), W.R. Newell(b),P.F. Taday(c) and A.J. Langley(c) (a) Department of Pure and Applied Physics, The Queen's University of Belfast, Belfast BT7 1NN, N.Ireland, UK (b) Department of Physics and Astronomy, University College London, London WC1E 6BT, UK (c) Rutherford Appleton Laboratory, Didcot, Oxon OX11 0XQ, UK In the first experimental study of its kind, beams of the molecular ions H2+ and HD+ have been subjected to intense fields via interaction with femtosecond laser pulses. Charged and neutral fragmentation products have been separated and analysed using a time-of-flight method. The time-of-flight spectra for the neutral species have been analysed in terms of the dissociation dynamics.