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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 14 — Jul. 15, 2013
  • pp: 17392–17403

Controllable double tunneling induced transparency and solitons formation in a quantum dot molecule

Yanchao She, Xuejun Zheng, Denglong Wang, and Weixi Zhang  »View Author Affiliations

Optics Express, Vol. 21, Issue 14, pp. 17392-17403 (2013)

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We consider the coupling effect between interdot tunneling coupling and external optical control field to study the linear optical property and the formation of temporal optical solitons in a quantum dot molecules system, analytically. The results show that the double tunneling induced transparency (TIT) windows are appeared in the absorption curve of probe field because of the formation of dynamic Stark splitting and quantum destructive interference effect from the two upper levels. Interestingly, the width of the TIT window becomes wider with the increasing intensity of the optical control field. We also find that the Kerr nonlinear effect of the probe field can be modulated effectively through coherent control both the control field and the interdot tunneling coupling in this system. Meanwhile, we demonstrate that the formation of dark or bright solitons can be practical regulated by varying the intensity of the optical control field.

© 2013 OSA

OCIS Codes
(190.3270) Nonlinear optics : Kerr effect
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(270.5585) Quantum optics : Quantum information and processing
(250.5590) Optoelectronics : Quantum-well, -wire and -dot devices

ToC Category:
Nonlinear Optics

Original Manuscript: May 22, 2013
Revised Manuscript: July 3, 2013
Manuscript Accepted: July 4, 2013
Published: July 12, 2013

Yanchao She, Xuejun Zheng, Denglong Wang, and Weixi Zhang, "Controllable double tunneling induced transparency and solitons formation in a quantum dot molecule," Opt. Express 21, 17392-17403 (2013)

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