Optical nonlinearities of InP/ZnS core/shell and inverted core/shell quantum dot

Muthukani Elamathi; Amalorpavam J. Peter

doi:10.1117/1.JNP.12.046012

30 October 2018 Optical nonlinearities of InP/ZnS core/shell and inverted core/shell quantum dot

Muthukani Elamathi, Amalorpavam J. Peter

Author Affiliations +

Journal of Nanophotonics, Vol. 12, Issue 4, 046012 (October 2018). https://doi.org/10.1117/1.JNP.12.046012

Abstract

Exciton binding energies as a function of core/shell radius ratio are studied for the InP/ZnS core/shell quantum dot and ZnS/InP inverted core/shell quantum dot theoretically. The self-interaction potential due to the interaction between the exciton and its image charge and the built-in internal fields between inner and outer core materials are included in the Hamiltonian. The optical nonlinear susceptibilities for the second-harmonic generation and the third-harmonic generation with the photon energy for a constant radius are obtained for the core/shell and inverted core/shell quantum dots. The third-order Kerr effect as a function of photon energy is found for core/shell and inverted core/shell quantum dots of InP/ZnS and ZnS/InP semiconductors, respectively. The Kerr effect is studied using the real part of the third-order optical susceptibility.

Citation Download Citation

Muthukani Elamathi and Amalorpavam J. Peter "Optical nonlinearities of InP/ZnS core/shell and inverted core/shell quantum dot," Journal of Nanophotonics 12(4), 046012 (30 October 2018). https://doi.org/10.1117/1.JNP.12.046012

Received: 8 July 2018; Accepted: 11 October 2018; Published: 30 October 2018

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