Abstract We investigate the nonlinear optical rectification (NOR) of spherical quantum dots (QDs) under Hulthén plus Hellmann confining potential with the external tuning elements. Energy and wavefunction are determined by using the Nikiforov-Uvarov method. Expression for the NOR coefficient is derived by the density matrix theory. The results show that the applied external elements and internal parameters of this system have a strong influence on intraband nonlinear optical properties. It is hopeful that this tuning of the nonlinear optical properties of GaAs/Ga1-xAlxAs QDs can make a greater contribution to preparation of new functional optical devices.
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 51702003, 61775087, 11674312, 52174161, and 12174161).
Corresponding Authors:
Xue-Chao Li
E-mail: xuechao80@126.com
Cite this article:
Yi-Ming Duan(段一名) and Xue-Chao Li(李学超) Nonlinear optical rectification of GaAs/Ga1-xAlxAs quantum dots with Hulthén plus Hellmann confining potential 2023 Chin. Phys. B 32 017303
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