Nonlinear optical rectification of GaAs/Ga1-xAlxAs quantum dots with Hulthén plus Hellmann confining potential

doi:10.1088/1674-1056/ac70bf

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/Ga_1-xAl_xAs QDs can make a greater contribution to preparation of new functional optical devices.

Keywords: nonlinear optical rectification quantum dots Hulthén plus Hellmann potential Nikiforov-Uvarov method

Received: 08 April 2022
Revised: 12 May 2022
Accepted manuscript online: 18 May 2022

PACS:	73.21.La	(Quantum dots)
	96.12.Hg	(Magnetic field and magnetism)
	33.80.-b	(Photon interactions with molecules)

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/Ga_1-xAl_xAs quantum dots with Hulthén plus Hellmann confining potential 2023 Chin. Phys. B 32 017303

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Nonlinear optical rectification of GaAs/Ga1-xAlxAs quantum dots with Hulthén plus Hellmann confining potential

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Nonlinear optical rectification of GaAs/Ga_1-xAl_xAs quantum dots with Hulthén plus Hellmann confining potential