The effect of position-dependent mass on nonlinear optical absorption coefficients and refractive index changes in a quantum well

作者：Meilin Hu, Kangxian Guo, Zhongmin Zhang, Xiancong Jiang, Keyin Li, Dongfeng Liu · 发表于：International Journal of Modern Physics B · 年份：2016 · DOI：10.1142/s0217979217500096 · 被引用次数：21 · 研究领域：Quantum Information and Cryptography、Advanced Fiber Laser Technologies、Photonic and Optical Devices

The influence of position-dependent mass (PDM) on nonlinear optical absorption (OA) coefficients and refractive index changes (RICs) is theoretically studied, within the framework of the iterative method and the compact-density-matrix approach. Through solving Schrödinger equation, the eigenfunctions and energy eigenvalues are obtained. The analytic expressions of the optical absorption coefficients and the refraction index changes are derived theoretically. The results reveal that the OA coefficients and the RICs are strongly affected by PDM, and both the peaks of them increase when considering PDM.