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Investigation of Quadratic Electro-optic Effects and Electro-absorption Process in GaN/AlGaN Spherical Quantum Dot

Overview
Journal Nanoscale Res Lett
Publisher Springer
Specialty Biotechnology
Date 2014 Mar 21
PMID 24646318
Citations 6
Authors
Mohammad Kouhi
Ali Vahedi
Abolfazl Akbarzadeh
Younes Hanifehpour
Sang Woo Joo
Affiliations
Soon will be listed here.
Abstract

Quadratic electro-optic effects (QEOEs) and electro-absorption (EA) process in a GaN/AlGaN spherical quantum dot are theoretically investigated. It is found that the magnitude and resonant position of third-order nonlinear optical susceptibility depend on the nanostructure size and aluminum mole fraction. With increase of the well width and barrier potential, quadratic electro-optic effect and electro-absorption process nonlinear susceptibilities are decreased and blueshifted. The results show that the DC Kerr effect in this case is much larger than that in the bulk case. Finally, it is observed that QEOEs and EA susceptibilities decrease and broaden with the decrease of relaxation time.

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