Femtosecond two-color three-pulse photon echoes for studying dephasing in silicon quantum dots

  • Lap Van Dao
  • Jeff Davis
  • Xiaoming Wen
  • Peter Hannaford


Using spectrally resolved femtosecond two-color three-pulse photon echo measurements we are able to study the dynamics of photo-excited carriers in near-spherical silicon quantum dots with an average size of 4.3 nm. The inhomogeneous broadening, dephasing time, and phase memory during carrier transfer can be obtained from this study.


Probe Pulse Coherence Time Phase Memory Photon Echo Dephasing Time 



We thank Dr. E.-C. Cho from the ARC Centre of Excellence for Advanced Silicon Photovoltaics and Photonics at The University of New South Wales for providing the sample and Mark Aizengendler and Alex Stanco from Lastek Laboratories for their contributions to the spectrometer and Garry CCD detector. This project is supported by the Australian Research Council Discovery Grant.


  1. 1.
    A. Vagov, V.M. Axt, T. Kuhn, Phys. Rev. B 67, 115338 (2003)CrossRefGoogle Scholar
  2. 2.
    N.H. Bonadeo, J. Erland, D. Gammon, D. Park, D.S. Katzer, D.G. Steel, Science 282, 1473 (1998)CrossRefGoogle Scholar
  3. 3.
    T.H. Tievater, X. Li, D.G. Steel, D. Gammon, D.S. Kazer, D. Park, C. Piermarocchi, L.J. Sham, Phys. Rev. Lett. 87, 133603 (2001)CrossRefGoogle Scholar
  4. 4.
    L.V. Dao, M. Lowe, P. Hannaford, H. Makino, T. Takai, T. Yao, Appl. Phys. Lett. 81, 1806 (2002)CrossRefGoogle Scholar
  5. 5.
    H. Kamada, H. Gotoh, J. Temmyo, T. Takagahara, H. Ando, Phys. Rev. Lett 87, 246401 (2001)CrossRefGoogle Scholar
  6. 6.
    A.V. Baranov, V. Davydov, A.V. Fedorov, H.W. Ren, S. Sugou, Y. Masumoto, Phys. Stat. Sol. B 224, 461 (2001)CrossRefGoogle Scholar
  7. 7.
    A.E. Colonna, X. Yang, G.D. Scholes, Phys. Stat. Sol. B 242, 990 (2005)CrossRefGoogle Scholar
  8. 8.
    L. Besombes, K. Kheng, L. Marsal, H. Mariette, Phys. Rev. B 63, 155307 (2001)CrossRefGoogle Scholar
  9. 9.
    J. M. Shacklette, S.T. Cundiff, Phys. Rev. B 66, 045309 (2002)CrossRefGoogle Scholar
  10. 10.
    L.V. Dao, C.N. Lincoln, R.M. Lowe, P. Hannaford, J. Chem. Phys. 120, 8434 (2004)CrossRefGoogle Scholar
  11. 11.
    L.V. Dao, X. Wen, M.T.T. Do, P. Hannaford, E. Cho, Y. Cho, Y. Huang, J. Appl. Phys. 97, 013501 (2005)CrossRefGoogle Scholar
  12. 12.
    L.V. Dao, C.N. Lincoln, R.M. Lowe, P. Hannaford, Femtosecond Laser Spectroscopy. (Springer, New York, 2005) pp. 197–224CrossRefGoogle Scholar
  13. 13.
    W. Zinth, W. Kaiser, Topics in Applied Physics, Vol. 60, (Springer-Verlag, Heidelberg, 1988)Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Lap Van Dao
    • 1
    • 2
  • Jeff Davis
    • 1
  • Xiaoming Wen
    • 1
  • Peter Hannaford
    • 1
  1. 1.ARC Centre of Excellence for Coherent X-Ray Science, Centre for Atom Optics and Ultrafast SpectroscopySwinburne University of TechnologyMelbourneAustralia
  2. 2.Centre for Atom Optics and Ultrafast Spectroscopy, Faculty of Engineering and Industrial SciencesSwinburne University of TechnologyVictoriaAustralia

Personalised recommendations