Tunable Second-Harmonic Generation in Asymmetric Triple-Gaussian Quantum Wells Reshaped by an Intense Laser Field

Ozan Öztürk

doi:10.17776/csj.1850003

Tunable Second-Harmonic Generation in Asymmetric Triple-Gaussian Quantum Wells Reshaped by an Intense Laser Field

Abstract

In this study, the second-harmonic generation (SHG) coefficient of a GaAs/AlGaAs asymmetric triple Gaussian quantum well (ATGQW) structure is investigated under the influence of an intense laser field (ILF). The results reveal that the applied ILF significantly reshapes the QW profile, leading to a laser-dressed potential with a modified confinement profile. As the laser-dressing parameter α_0 increases, the individual wells begin to merge, causing electrons to localize within a reduced number of QWs. Consequently, the system exhibits a decreasing effective number of QWs: while the structure contains three wells at α_0 = 0, it transitions to two wells at α_0 = 10 nm and a single well at α_0 = 20 nm. This behavior directly affects the energy level differences, the dipole moment matrix elements (DMMEs), and therefore the SHG coefficients. The transition energies E_21 and E_31/2 show a nonlinear dependence on the ILF strength, whereas the product of the DMMEs reaches a pronounced maximum at α_0 ≈ 9 nm and rapidly decreases for higher ILF values due to the enhanced localization of electrons in narrower regions. These findings demonstrate that the ILF serves as an efficient control mechanism capable of dynamically tuning the effective well count and strongly modulating the nonlinear optical response of semiconductor QW systems.

Keywords

Dipole moment matrix element, Gaussian quantum well, Intense laser field, Second-harmonic generation

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Details

Primary Language

English

Subjects

Quantum Optics and Quantum Optomechanics

Journal Section

Research Article

Authors

Ozan Öztürk ^*
0000-0002-9592-3152
Türkiye

Publication Date

June 29, 2026

Submission Date

December 26, 2025

Acceptance Date

May 7, 2026

Published in Issue

Year 2026 Volume: 47 Number: 3

DOI

https://doi.org/10.17776/csj.1850003

IZ

https://izlik.org/JA97UY39MJ

APA

Öztürk, O. (2026). Tunable Second-Harmonic Generation in Asymmetric Triple-Gaussian Quantum Wells Reshaped by an Intense Laser Field. Cumhuriyet Science Journal, 47(3), 574-579. https://doi.org/10.17776/csj.1850003

AMA

1.Öztürk O. Tunable Second-Harmonic Generation in Asymmetric Triple-Gaussian Quantum Wells Reshaped by an Intense Laser Field. CSJ. 2026;47(3):574-579. doi:10.17776/csj.1850003

Chicago

Öztürk, Ozan. 2026. “Tunable Second-Harmonic Generation in Asymmetric Triple-Gaussian Quantum Wells Reshaped by an Intense Laser Field”. Cumhuriyet Science Journal 47 (3): 574-79. https://doi.org/10.17776/csj.1850003.

EndNote

Öztürk O (June 1, 2026) Tunable Second-Harmonic Generation in Asymmetric Triple-Gaussian Quantum Wells Reshaped by an Intense Laser Field. Cumhuriyet Science Journal 47 3 574–579.

IEEE

[1]O. Öztürk, “Tunable Second-Harmonic Generation in Asymmetric Triple-Gaussian Quantum Wells Reshaped by an Intense Laser Field”, CSJ, vol. 47, no. 3, pp. 574–579, June 2026, doi: 10.17776/csj.1850003.

ISNAD

Öztürk, Ozan. “Tunable Second-Harmonic Generation in Asymmetric Triple-Gaussian Quantum Wells Reshaped by an Intense Laser Field”. Cumhuriyet Science Journal 47/3 (June 1, 2026): 574-579. https://doi.org/10.17776/csj.1850003.

JAMA

1.Öztürk O. Tunable Second-Harmonic Generation in Asymmetric Triple-Gaussian Quantum Wells Reshaped by an Intense Laser Field. CSJ. 2026;47:574–579.

MLA

Öztürk, Ozan. “Tunable Second-Harmonic Generation in Asymmetric Triple-Gaussian Quantum Wells Reshaped by an Intense Laser Field”. Cumhuriyet Science Journal, vol. 47, no. 3, June 2026, pp. 574-9, doi:10.17776/csj.1850003.

Vancouver

1.Ozan Öztürk. Tunable Second-Harmonic Generation in Asymmetric Triple-Gaussian Quantum Wells Reshaped by an Intense Laser Field. CSJ. 2026 Jun. 1;47(3):574-9. doi:10.17776/csj.1850003

As of 2026, Cumhuriyet Science Journal will be published in six issues per year, released in February, April, June, August, October, and December

Tunable Second-Harmonic Generation in Asymmetric Triple-Gaussian Quantum Wells Reshaped by an Intense Laser Field

Abstract

Keywords

References

Details

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Acceptance Date

Published in Issue

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