https://doi.org/10.1140/epjp/s13360-023-04117-8
Regular Article
Hydrogen molecular ion-related nonlinear optical rectification in quantum dots
1
Faculty of Science, Department of Physics, Dokuz Eylul University, 35390, Izmir, Turkey
2
Faculty of Education, Department of Mathematical and Natural Science Education, Sivas Cumhuriyet University, 58140, Sivas, Turkey
Received:
4
April
2023
Accepted:
18
May
2023
Published online:
10
June
2023
The influence of the internuclear distance and quantum dot size on the nonlinear optical rectification of a hydrogen molecular ion 
confined in a two-dimensional quantum dot was calculated. In the framework of the effective mass approximation, the solutions of the resulting eigenvalue equation are obtained using the two-dimensional diagonalization method. It was demonstrated that the nonlinear optical rectification of the complex shows a double-peak structure and a considerable increase in the peak value is seen by increasing the distance between nuclei. In addition, it has been determined that the nonlinear optical rectification amplitude is larger in large-sized QDs and in the case of high asymmetry of the system. Based on our calculations, it was shown that by adjusting the distance between nuclei, a redshift or blueshift at the peak position of the nonlinear optical rectification of the molecular complex can be achieved.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
