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Conferences > CLEO > 2008 > CTuJ > CTuJ3
  • Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies
  • OSA Technical Digest (CD) (Optica Publishing Group, 2008),
  • paper CTuJ3

Free-carrier Absorption in Si Nanocrystals Probed by Microcavity Photoluminescence

Rohan D. Kekatpure, Alex R. Guichard, and Mark L. Brongersma

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Abstract

Resonant photoluminescence of Si-nanocrystals is used to determine their free-carrier absorption cross-section (σFCA) at visible/near-infrared wavelengths. Rate-equation modeling, including ensemble effects, yields σFCA = 7.8 × 10−18 cm2at 895nm. This has implications for Si-based laser design at various wavelengths.

© 2008 Optical Society of America

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