A study of confined Stark effect, hydrostatic pressure and temperature on nonlinear optical properties in 1D GaxAl1−xAs/GaAs/GaxAl1−xAs quantum dots under a finite square well potential
https://doi.org/10.17586/2220-8054-2023-14-1-44-53
Abstract
In the present paper, investigations of nonlinear optical rectification, absorption coefficient and refractive index in a 1D GaxAl1−xAs/GaAs/GaxAl1−xAs quantum dots under a finite square well potential using simulation software such as COMSOL Multi-Physics and Matlab have been carried out in the presence of electric field, hydrostatic pressure and temperature. Results show that the resonant peaks of ORC (optical rectification coefficient) exhibit a blue shift under increasing of the electric field, while a red shift trailed by a blue shift is displayed under increasing of hydrostatic pressure and temperature. Similar trends take place for the refractive index as well as for the absorption coefficient under changing of the electric field, temperature and hydrostatic pressure. The attained theoretical results would pave a novel opportunity in designing, optimizing and applications of nonlinear opto-electronic devices by tuning the performance of the quantum dots and controlling some of their specific properties.
About the Authors
R. Chaurasiya
Delhi Technological University
India
India
Rohit Chaurasiya, Department of Applied Physics,
Shahbad Daulatpur, Main Bawana Road, Delhi, 110042.
S. Dahiya
Delhi Technological University
India
India
Suman Dahiya, Department of Applied Physics,
Shahbad Daulatpur, Main Bawana Road, Delhi, 110042.
R. Sharma
Delhi Technological University
India
India
Rinku Sharma, Department of Applied Physics,
Shahbad Daulatpur, Main Bawana Road, Delhi, 110042.
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Review
For citations:
Chaurasiya R., Dahiya S., Sharma R. A study of confined Stark effect, hydrostatic pressure and temperature on nonlinear optical properties in 1D GaxAl1−xAs/GaAs/GaxAl1−xAs quantum dots under a finite square well potential. Nanosystems: Physics, Chemistry, Mathematics. 2023;14(1):44-53. https://doi.org/10.17586/2220-8054-2023-14-1-44-53
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