Hydrogen molecular ion-related nonlinear optical rectification in quantum dots
European Physical Journal Plus, cilt.138, sa.6, 2023 (SCI-Expanded)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 138 Sayı: 6
- Basım Tarihi: 2023
- Doi Numarası: 10.1140/epjp/s13360-023-04117-8
- Dergi Adı: European Physical Journal Plus
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, INSPEC
- Sivas Cumhuriyet Üniversitesi Adresli: Evet
Özet
The influence of the internuclear distance and quantum dot size on the nonlinear optical rectification of a hydrogen molecular ion D2+ 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 D2+ 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.