Home | About Journal | Web Links | E-mail Alerts | RSS RSS Icon | Browse
Previous Article Next Article

Density-dependent carrier dynamics in a quantum dots-in-a-well heterostructure

Source: Appl. Phys. Lett. 96, 031110 (2010); doi:10.1063/1.3294309

Published 22 January 2010

KEYWORDS and PACS
Keywords
PACS
  • 73.63.Kv
    Quantum dots (electronic transport)
  • 73.40.Kp
    Electrical properties of III-V semiconductor-to-semiconductor contacts, p-n junctions, and heterojunctions
  • 72.20.Jv
    Charge carriers: generation, recombination, lifetime, and trapping (semiconductors/insulators)
  • 78.67.Hc
    Optical properties of quantum dots
  • 78.55.Cr
    Photoluminescence in III-V semiconductors
  • 78.47.J-
    Ultrafast pump/probe spectroscopy (<1 ps) in condensed matter
  • YEAR: 2010
RELATED DATABASES

To view database links for this article,
you need to log in.
To view database links for this article,
you need to log in.
PUBLICATION DATA
ISSN:
1553-9601 (online)
Publisher:
AIP is a member of CrossRef AIP
R. P. Prasankumar,1 W. W. Chow,2 J. Urayama,2 R. S. Attaluri,3 R. V. Shenoi,3 S. Krishna,3 and A. J. Taylor1
1Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
2Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
3Department of Electrical and Computer Engineering, Center for High Technology Materials, University of New Mexico, Albuquerque, New Mexico 87106, USA
The incorporation of semiconductor quantum dots into different heterostructures for applications in nanoscale lasing and amplification has been an active area of research in recent years. Here, we use ultrafast differential transmission spectroscopy to temporally and spectrally resolve density-dependent carrier dynamics in a quantum dots-in-a-well (DWELL) heterostructure. We observe excitation-dependent shifts of the quantum dot energy levels at low densities, while at high densities we observe an anomalous induced absorption at the quantum dot excited state that is correlated with quantum well population dynamics. These studies reveal unique Coulomb interaction-induced phenomena with important implications for DWELL-based lasers and amplifiers. ©2010 American Institute of Physics
History: Received 18 September 2009; accepted 22 December 2009; published 22 January 2010
Permalink: http://link.aip.org/link/?APPLAB/96/031110/1

REFERENCES (18)

For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.
  1. S. Krishna, J. Phys. D 38, 2142 (2005).
  2. P. Bhattacharya, S. Ghosh, and A. D. Stiff-Roberts, Annu. Rev. Mater. Res. 34, 1 (2004).
  3. M. S. Skolnick and D. J. Mowbray, Annu. Rev. Mater. Res. 34, 181 (2004).
  4. G. T. Liu, A. Stintz, H. Li, T. C. Newell, A. L. Gray, P. M. Varangis, K. J. Malloy, and L. F. Lester, IEEE J. Quantum Electron. 36, 1272 (2000).
  5. H. Su and L. F. Lester, J. Phys. D 38, 2112 (2005).
  6. J. Gomis-Bresco, S. Dommers, V. V. Temnov, U. Woggon, M. Laemmlin, D. Bimberg, E. Malic, M. Richter, E. Scholl, and A. Knorr, Phys. Rev. Lett. 101, 256803 (2008).
  7. W. W. Chow and S. W. Koch, IEEE J. Quantum Electron. 41, 495 (2005).
  8. V. I. Klimov, J. Phys. Chem. B 104, 6112 (2000).
  9. T. B. Norris, K. Kim, J. Urayama, Z. K. Wu, J. Singh, and P. Bhattacharya, J. Phys. D 38, 2077 (2005).
  10. P. Borri, S. Schneider, W. Langbein, D. Bimberg, and J. Opt, Pure Appl. Opt. 8, S33 (2006).
  11. H. C. Schneider, W. W. Chow, and S. W. Koch, Phys. Rev. B 64, 115315 (2001).
  12. H. C. Schneider, W. W. Chow, and S. W. Koch, Phys. Rev. B 70, 235308 (2004).
  13. T. Piwonski, J. Pulka, G. Madden, G. Huyet, J. Houlihan, E. A. Viktorov, T. Erneux, and P. Mandel, Appl. Phys. Lett. 94, 123504 (2009).
  14. R. P. Prasankumar, R. S. Attaluri, R. D. Averitt, J. Urayama, N. Weisse-Bernstein, P. Rotella, A. Stintz, S. Krishna, and A. J. Taylor, Opt. Express 16, 1165 (2008).
  15. P. Aivaliotis, S. Menzel, E. A. Zibik, J. W. Cockburn, L. R. Wilson, and M. Hopkinson, Appl. Phys. Lett. 91, 253502 (2007).
  16. G. Visimberga, G. Raino, A. Salhi, V. Tasco, M. T. Todaro, L. Martiradonna, M. De Giorgi, A. Passaseo, R. Cingolani, and M. De Vittorio, Appl. Phys. Lett. 93, 151112 (2008).
  17. L. E. Vorobjev, N. K. Fedosov, V. Y. Panevin, D. A. Firsov, V. A. Shalygin, M. I. Grozina, A. Andreev, V. M. Ustinov, I. S. Tarasov, N. A. Pikhtin, Y. B. Samsonenko, A. A. Tonkikh, G. E. Cirlin, V. A. Egorov, F. H. Julien, F. Fossard, A. Helman, and Kh. Moumanis, Semicond. Sci. Technol. 22, 814 (2007).
  18. J. Urayama, T. B. Norris, H. Jiang, J. Singh, and P. Bhattacharya, Physica B 316, 74 (2002).

CITING ARTICLES
For access to citing articles, you need to log in.
For access to citing articles, you need to Log in.
ADVERTISEMENT