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Enhancement of optical rectification in coupled quantum wells

  • Regular Article - Optical Phenomena and Photonics
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Abstract

The nonlinear optical rectification (OR) in the asymmetric GaAs/AlxGa1−xAs coupled quantum wells (CQWs) is theoretically investigated. The compact density matrix approach and the iterative method are used to calculate the OR in CQWs. The results show that the OR value obtained in this system can be enhanced by adjusting the parameters of the left-well. Moreover, the OR value also depends strongly on the electron density of the CQWs.

Graphical abstract

OR value \(\chi_{0}^{\left( 2 \right)}\) as a function of the photon energy \(\hbar \omega\) for three different left-well’s parameters U1 and widths WL

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Data Availability Statement

This manuscript has no associated data or the data will not be deposited. [Authors’ comment: The datasets generated in this study are available from the corresponding author, C.J. Zhang, upon reasonable request.]

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Acknowledgements

The work is supported by National Natural Science Foundation of China (Grants Nos. 12174161 and 12074398).

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Correspondence to Chaojin Zhang or Chengpu Liu.

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Jiang, Y., Zhang, C., Du, H. et al. Enhancement of optical rectification in coupled quantum wells. Eur. Phys. J. D 78, 11 (2024). https://doi.org/10.1140/epjd/s10053-024-00801-1

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