Browsing Journal Articles by Author "Samoc, Marek"

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Browsing Journal Articles by Author "Samoc, Marek"

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  • Dowd, Annette; Samoc, Marek; Luther-Davies, Barry; Elliman, Robert (Elsevier Science Bv, 1999)
    Degenerate four-wave mixing (DFWM) is used to examine the nonlinear optical response of Ge nanocrystals in a silica matrix. The nanocrystals are formed by implanting 1.0 MeV Ge ions into silica to a dose of 3.0x10(17) Ge ...
  • Dowd, Annette; Elliman, Robert; Samoc, Marek; Luther-Davies, Barry (Amer Inst Physics, 1999)
    Time-resolved degenerate-four-wave-mixing measurements were used to study the nonlinear optical response (intensity-dependent refractive index! of Ge nanocrystallites embedded in a silica matrix. Nanocrystals were fabricated ...
  • Dowd, Annette; Llewellyn, David; Elliman, Robert; Luther-Davies, Barry; Samoc, Marek; Fitz Gerald, John (Elsevier Inc, 2001)
    Ge nanocrystals formed in silica by implantation with 1.0 MeV Ge ions and subsequent annealing at 1100A?C were characterised by transmission electron microscopy and Raman spectroscopy. The nanocrystals were found to be ...