Controlled modification of erbium lifetime in silicon dioxide film with chromium or titanium coatings
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We report systematic measurements of the lifetime of the 1.54 m transition of erbium implanted at different energies in SiCO 2 films coated with titanium or chromium. The lifetime shows a strong reduction up to a factor of 20 with decreasing distance between the erbium and the metal coating. Our experiments combined with rigorous theoretical modeling demonstrate that a high degree of control over the radiative properties of erbium can be achieved in erbium-irnplanted materials. 2008 Materials Research Society.