Chemical lasers, W.C.Solomon; colour centre lasers, C.R.Pollock; colour, science of, R.M.Boynton; diffraction, optical, S.Solimeno; electrodynamics, quantum, W.P.Healy; free-electron lasers, H.P.Freund and R.K.Parker; gas lasers, W.W.Duley; holography, C.C.Guest; interferometry, optical, P.Hariharan; laser cooling and trapping of atomsl, J.E.Bjorkholm; lasers - materials interactions, M.Bass; laser pulsations, dynamical, N.Abraham; lasers, W.T.Silfvast; light sources, J.F.Waymouth; luminescence, J.N.Demas and S.E.Demas; micro-optics, K.Iga; mode-locking of lasers, P.W.Smith and A.M.Weiner; nonimaging concentrators (optics), R.Winston and J.O'Gallagher; nonlinear optical processes, J.F.Reintjes; nuclear pumped lasers, D.A.McArthur; optical circuitry, H.M.Gibbs, et al; optical fibre communications, B.K.Tariyal and A.H.Cherin; optical fibre techniques (medicine), A.Katzir; optical fibres, drawing and coating, L.L. Blyler, Jr and F.V.DiMarcello; optical information processing, M.M.Mirsalehi; optical phase conjugation, R.A.Fisher; optical systems design, R.E.Fischer; quantum optics, J.H.Eberly and P.W.Milonni; rare gas-halide lasers, M.Obara and F.Kannari; semiconductor injection lasers, P.J.Delfyett and C.H.Lee; speckle interferometry, H.A.McAlister; switching, optical, S.C.Gratze; telescopes, optical, L.D.Barr; tunable dye lasers, T.F.Johnston, Jr; ultra-fast laser technology, P.J.Delfyett, et al; ultrashort laser pulse chemistry and spectroscopy, J.L.Knee.