A detailed study of the free carrier absorption losses at 1.5 mu m has been performed on silicon-nanocrystal rib waveguides by pumping at 532 nm. At the highest photon flux, the measured losses were about 6 dB/cm. We demonstrate that the dynamics of the carrier absorption is that of the luminescence.
Assessment of the Excited Carrier absorption losses in Si-nc rib-waveguides
Daldosso, Nicola;
2007
Abstract
A detailed study of the free carrier absorption losses at 1.5 mu m has been performed on silicon-nanocrystal rib waveguides by pumping at 532 nm. At the highest photon flux, the measured losses were about 6 dB/cm. We demonstrate that the dynamics of the carrier absorption is that of the luminescence.
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