量子电子学报, 2004, 21 (4): 429, 网络出版: 2006-05-15   

非对称量子阱中线性和三阶非线性光吸收系数的研究

Study on linear and third-order nonlinear optical absorption in special asymmetric quantum wells
作者单位
1 华南师范大学量子电子学研究所,广东,广州,510631
2 广州大学物理系,广东,广州,510405
摘要
主要研究了一个特殊非对称量子阱中的线性和三阶非线性光吸收系数.首先利用量子力学中的密度矩阵算符理论和迭代方法导出了线性和三阶非线性光吸收系数的表达式,然后以典型的非对称量子阱GaAs/AlGaAs材料为例作了数值计算.数值结果表明,入射光强以及系统的非对称性对总的光吸收系数有比较大的影响,从而为实验研究提供理论依据.
Abstract
Authors give a detailed procedure for the calculation of the linear and third-order nonlinear optical absorption in special asymmetric quantum wells. It is obtained an analytic formula for the optical absorption by the compact density matrix method and the iterative procedure. Finally, the numerical results are presented for typical GaAs/AlGaAs asymmetric quantum wells. The numerical results show that the incident optical intensity and the asymmetry of the quantum wells have great influences on the optical absorption.
参考文献

[1] Wang Guanghui, Guo Kangxian. Second-order nonlinear optical susceptibility of a special asymmetric quantum well [J]. Acta Photonica Sinica (光子学报), 2001, 30(11): 1314-1317 (in Chinese).

[2] . Optical transitions in a parabolic quantum well with an applied electric field-analytical solutions[J]. J. Appl. Phys., 1989, 65(7): 2822-2826.

[3] . Excitonic effects on the third-harmonic generation in parabolic quantum dots[J]. J. Phys.:Condens. Matter, 2001, 13: 8197-8206.

[4] . Free carrier induced changes in the absorption and refractive index for intersubband optical transitions in AlxGaAs1-x/GaAs/AlxGaAs1-x quantum wells[J]. J. Appl. Phys., 1991, 70(9): 5010-5017.

[5] . . Model system for optical nonlinearities: asymmetric quantum wells[J]. Phys. Rev. B, 1991, 44(20): 1135-1137.

[6] Yu Youbin, Guo Kangxian, Yu Fengmei. Optical rectification in a special asymmetric quantum well [J]. Chinese Journal of Quantum Electronics (量子电子学报), 2003, 20(3): 283-286 (in Chinese).

[7] . Quantum states of confined carries in very thin AlxGa1-xAs/GaAs/AlxGa1-xAs heterostructures[J]. Phys. Rev. lett., 1974, 33: 827-833.

[8] . Strong 8.2μm infrared intersubband absorption in doped GaAs/AlAs quantum well wave guide[J]. Appl. Phys. Lett., 1987, 50: 27375-27377.

[9] . The optical properties of AlGaAs/GaAs hyperbolic quantum well structures[J]. J. Appl.Phys., 1991, 70(2): 1054-1056.

[10] . Nonlinear intersubband optical absorption in a semiconductor quantum well[J]. J. Appl.Phys., 1987, 62(7): 3052-3054.

[11] . Nonlinear absorption for two-dimensional magnetoexcitons in InxGa1-xAs/InyAl1-yAs quantum wells[J]. Phys. Rev. B, 1991, 44: 13093-13096.

[12] . Optical transition in strained Ge/Si superlattices[J]. Phys. Rev. B, 1992, 45: 6793-6801.

[13] Su Rukeng. Quantum Mechanics (量子力学) [M]. Fudan University Press, 1997. 61-102 (in Chinese).

王光辉, 郭康贤, 郭旗. 非对称量子阱中线性和三阶非线性光吸收系数的研究[J]. 量子电子学报, 2004, 21(4): 429. 王光辉, 郭康贤, 郭旗. Study on linear and third-order nonlinear optical absorption in special asymmetric quantum wells[J]. Chinese Journal of Quantum Electronics, 2004, 21(4): 429.

本文已被 2 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!