Miritello, M and Cardile, P and Lo Savio, R and Priolo, F (2011) Energy transfer and enhanced 1.54 μm emission in Erbium-Ytterbium disilicate thin films. Opt Express, 19. pp. 20761-20772.Full text not available from this repository.
α-(Yb1-xErx)2Si2O7 thin films on Si substrates were synthesized by magnetron co-sputtering. The optical emission from Er3+ ions has been extensively investigated, evidencing the very efficient role of Yb-Er coupling. The energy-transfer coefficient was evaluated for an extended range of Er content (between 0.2 and 16.5 at.%) reaching a maximum value of 2 × 10⁻¹⁶ cm⁻³s⁻¹. The highest photoluminescence emission at 1535 nm is obtained as a result of the best compromise between the number of Yb donors (16.4 at.%) and Er acceptors (1.6 at.%), for which a high population of the first excited state is reached. These results are very promising for the realization of 1.54 μm optical amplifiers on a Si platform.
|Divisions:||Div B > Photonics|
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|Date Deposited:||16 Jul 2015 13:04|
|Last Modified:||26 Jul 2015 00:44|