Research Papers

Study of nonlinear optical absorption in GaN/AlGaN core–shell nanowire

[+] Author Affiliations
Mohammad Kouhi

Department of Physics, Tabriz Branch, Islamic Azad University, Tabriz, Iran

J. Nanophoton. 11(1), 016012 (Mar 08, 2017). doi:10.1117/1.JNP.11.016012
History: Received December 4, 2016; Accepted February 17, 2017
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Abstract.  The effect of aluminum mole fraction and incident light intensity on linear, nonlinear, and total optical absorption coefficients in GaN/AlxGa1xN core-defected shell nanowire is theoretically investigated. The presented nanostructure is a cylindrical quantum wire including a defected shell around the cylinder core. Based on the density matrix approach and the effective mass approximation, the intersubband optical absorption coefficients are numerically calculated. The results show that the magnitude and peaks positions of optical absorption coefficients can be adjustable by varying aluminum mole fraction. The resonance peak positions of optical absorption coefficients are blueshifted by increasing of the shell region potential due to increasing of the energy difference between two energy levels.

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Citation

Mohammad Kouhi
"Study of nonlinear optical absorption in GaN/AlGaN core–shell nanowire", J. Nanophoton. 11(1), 016012 (Mar 08, 2017). ; http://dx.doi.org/10.1117/1.JNP.11.016012


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