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Influence of perturbations on linear and nonlinear optical properties of quantum dot

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Abstract

This study focused on investigating the influence of perturbations on the linear and nonlinear optical properties of \(GaAs/Ga_{1-x}Al_{x}As\) screened modified Kratzer potential (SMKP) quantum dot (QD). The optical absorption coefficients (OACs) and refractive index changes (RICs) for \(GaAs/Ga_{1-x}Al_{x}As\) have been presented. The density matrix and iterative approaches were used to derive expressions of OACs and RICs in SMKP QD. The diagonalization method has been used to obtain energy eigenvalues and eigenfunctions of \(GaAs/Ga_{1-x}Al_{x}As\) SMKP QD under the effects of Al concentration-x, hydrostatic pressure, and temperature. Our results reveal that the Al concentration-x, hydrostatic pressure, and temperature greatly impact the position and amplitude of the resonant peaks of the linear and nonlinear OACs and RICs. Interpretations have been presented in detail. The results of this study will find applications in the optical physics of semiconductors and other systems.

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Data Availability Statement

This manuscript has associated data in a data repository. [Authors’ comment: Data will be made available on reasonable request [37, 38].]

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Acknowledgements

C. O. Edet acknowledges eJDS (ICTP).

Funding

COE and NA acknowlegdes the support from the  Long-Term Research Grant Scheme (LRGS) Grant LRGS/1/2020/UM/01/5/2 (9012-00009) provided by the Ministry of Higher Education of Malaysia (MOHE). RE and SAA acknowledges the support from the LRGS under Grant Number LRGS/1/2020/UM/01/5/4 (9012-00010) provided by the Ministry of Higher Education Malaysia.

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Authors and Affiliations

  1. Institute of Engineering Mathematics,Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia

    C. O. Edet

  2. Department of Physics, Cross River University of Technology, Calabar, Nigeria

    C. O. Edet

  3. Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis, Kangar, Perlis, Malaysia

    C. O. Edet, N. Ali, R. Endut & S. A. Aljunid

  4. Physics Department, Faculty of Science, Sivas Cumhuriyet University, 58140, Sivas, Turkey

    E. B. Al & F. Ungan

  5. Department of Physics, National Open University of Nigeria, PMB 581, Jabi-Abuja, Nigeria

    Etido P. Inyang

  6. Advanced Communication Engineering (ACE) Centre of Excellence Universiti Malaysia Perlis, 01000, Kangar, Perlis, Malaysia

    N. Ali, R. Endut & S. A. Aljunid

  7. Institute of Nano Electronic Engineering (INEE), Universiti Malaysia Perlis (UniMAP), 01000, Kangar, Perlis, Malaysia

    M. M. Ramli

  8. Geopolymer and Green Technology, Centre of Excellence (CEGeoGTech), Universiti Malaysia Perlis (UniMAP), Arau, Perlis, Malaysia

    M. M. Ramli

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  1. C. O. Edet
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Edet, C.O., Al, E.B., Ungan, F. et al. Influence of perturbations on linear and nonlinear optical properties of quantum dot. Eur. Phys. J. Plus 138, 904 (2023). https://doi.org/10.1140/epjp/s13360-023-04519-8

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