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B.N Murdin, A.R Hollingworth, J.A Barker, D.G Clarke, P.C Findlay, C.R Pidgeon, J.PR Wells, I.V Bradley, S. Malik, R. MurrayDouble-resonance spectroscopy of InAs/GaAs self-assembled quantum dots, Physical Review B 1262 (2000) R7755-R7758.
P.C Findlay, J.PR Wells, I.V Bradley, J.G Crowder, C.R Pidgeon, B.N Murdin, M.J Yang, I. Vurgaftman, J.R MeyerSuppression of Auger recombination in long-wavelength quantum well W-structure lasers, Physical Review B 1562 (2000) 10297-10300.
J.PR Wells, C.W Rella, I.V Bradley, I. Galbraith, C.R PidgeonCoherent dynamics of the localized vibrational modes of hydrogen in CaF2, Physical Review Letters 2184 (2000) 4998-5001.
J.PR Wells, R.J ReevesPolarized laser-selective excitation and Zeeman infrared absorption of Sm3+ centers in CaF2 and SrF2 crystals, Physical Review B 2061 (2000) 13593-13608.
J.PR Wells, T.PJ Han, M. Yamaga, N. Kodama, H.G GallagherDisordered laser gain media: Er3+ doped CaGdAlO4 and Ca3Ga2Ge4O14, Journal of Luminescence 87-9 (2000) 1093-1095.
J.PR Wells, A. Sugiyama, T.PJ Han, H.G GallagherA spectroscopic comparison of samarium-doped LiYF4 and KY3F10, Journal of Luminescence 87-9 (2000) 1029-1031.
J.PR Wells, M. Yamaga, T.PJ Han, H.G GallagherInfrared absorption, laser excitation and crystal-field analyses of the C-4v symmetry centre in KY3F10 doped with Pr3+, Journal of Physics-Condensed Matter 2412 (2000) 5297-5306.
J.PR Wells, M. Yamaga, R.W Mosses, T.PJ Han, H.G Gallagher, T. YosidaPolarized laser selective excitation and electron paramagnetic resonance of Er3+ centers in SrLaAlO4 crystals, Physical Review B 661 (2000) 3905-3914.
G.J Nott, P.C Findlay, J.G Crowder, C.R Pidgeon, C.T Elliott, T. Ashley, A.D Johnson, J.PR Wells, I.V Bradley, B.N Murdin et al.Direct determination of Shockley-Read-Hall trap density in InSb/InAlSb detectors, Journal of Physics-Condensed Matter 5012 (2000) L731-L734.
J.PR Wells, H.C Gallagher, T.PJ HanCrystal-growth and spectroscopy of Er3+ ions in calcium gallogermanate, Journal of Crystal Growth 3217 (2000) 302-310.
J.PR Wells, I.V Bradley, G.D Jones, C.R PidgeonFree-electron-laser studies of the relaxation of H- and D- local modes in CaF2, SrF2, and BaF2, Physical Review B 1464 (2001) 
G.D Jones, J.JY Sung, T. Hume, L.S Ing, I.V Bradley, J.PR WellsInfrared absorption of H- and D- in the alkaline-earth fluorides, Journal of Physics-Condensed Matter 1013 (2001) 2127-2135.
J.PR Wells, I.V Bradley, G.D Jones, C.R PidgeonPopulation dynamics of H- local modes in CaF2 : Lu3+ crystals studied using a free-electron laser, Journal of Physics-Condensed Matter 1013 (2001) 2137-2145.
J.PR Wells, R.J ReevesPolarized laser selective excitation and Zeeman infrared absorption of C-4v and C-3v symmetry centers in Eu3+-doped CaF2, SrF2, and BaF2 crystals, Physical Review B 364 (2001) 
M. Forcales, M. Klik, N.Q Vinh, I.V Bradley, J.PR Wells, T. GregorkiewiczFree-electron laser studies of energy transfer mechanisms in semiconductors doped with transition series ions, Journal of Luminescence 94 (2001) 243-248.
I.V Bradley, P. Murzyn, B.N Murdin, J.PR Wells, D.G Clarke, R.A Stradling, C.R PidgeonMulti phonon emission in InAs quantum wells studied with a free electron laser and high pulsed magnetic fields, Journal of Luminescence 94 (2001) 707-711.
M. Forcales, I.V Bradley, J.PR Wells, T. GregorkiewiczMid-infrared induced quenching of photoluminescence in Si : Er, Materials Science and Engineering B-Solid State Materials for Advanced Technology 1-381 (2001) 80-82.