MODIFICATION OF THE OPTICAL-PROPERTIES OF GLASS BY SEQUENTIAL ION-IMPLANTATION

The linear and nonlinear optical properties of a series of samples for med by the sequential implantation of Ti, O and Au in high purity sili ca are examined Energies of implantation for each ion were chosen usin g TRIM calculations to insure overlap of the ion distributions. The Ti was implanted with nominal doses of 1.2 and 2 X 10(17) ions/cm(2). Th e samples were implanted with oxygen to the same nominal dose as the T i. Au was then implanted with a nominal dose of 6 X 10(16) ions/cm(2). The samples were subsequently annealed in oxygen at 900 degrees C for two hours. The Ti is incorporated into the host network, whereas the Au forms nanosize colloids. The presence of the Ti in the substrate ca uses a shift in the surface plasmon resonance frequency of the Au meta l colloids as well as increase in the nonlinear response of the compos ites. The results are interpreted using effective medium theory.