Dyer, D. J.; Cumpston, B. H.; McCord-Maughon, D.; Thayumanavan, S.; Barlow, S.; Perry, J. W.; Marder, S. R.  “Turning on Fluorescence by Two-Photon Excitation and Polymerization: Toward a 3-D Optical Memory Device” Nonlinear Optics, Quant. Opt. 2004, 31(1-4), 175-184.