Enhancing Kerr nonlinearity in an asymmetric double quantum well via Fano interference

Hui Sun, Shangqing Gong, Yueping Niu, Shiqi Jin, Ruxin Li, and Zhizhan Xu
Phys. Rev. B 74, 155314 – Published 17 October 2006
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  • INTRODUCTION
  • THE MODEL AND BASIC EQUATIONS
  • RESULTS AND DISCUSSIONS
  • CONCLUSIONS
  • ACKNOWLEDGEMENTS
    • References

    Abstract

    We investigate the enhancement of Kerr nonlinearity in an asymmetric GaAs double quantum well via Fano interference, which is caused by tunneling from the excited subband to the continuum. In our structure, owing to Fano interference, the Kerr nonlinearity can be enhanced by appropriately choosing the values of the detunings and the intensity of the pump field, while cancel the linear and nonlinear absorptions.

      • Received 18 April 2006

      DOI:https://doi.org/10.1103/PhysRevB.74.155314

      ©2006 American Physical Society

      Authors & Affiliations

      Hui Sun1,2, Shangqing Gong3,1,*, Yueping Niu1,†, Shiqi Jin1, Ruxin Li1, and Zhizhan Xu1

      • 1State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
      • 2Graduate University of Chinese Academy of Sciences, Beijing 100049, China
      • 3CCAST (World Laboratory), P. O. Box 8730, Beijing 100080, China

      • *Corresponding author. Electronic address: sqgong@mail.siom.ac.cn
      • †Electronic address: niuyp@mail.siom.ac.cn

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      Issue

      Vol. 74, Iss. 15 — 15 October 2006

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