Nonlinear optical rectification and the second and third harmonic generation in P枚schl-Teller quantum well under the intense laser field

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• 作者：S. 艦akiro臒lu^a ; ^{serpil.sakiroglu@deu.edu.tr} ; F. Ungan^b ; U. Yesilgul^b ; M.E. Mora-Ramos^c ; C.A. Duque^d ; E. Kasapoglu^b ; H. Sari^b ; 陌. Sö ; kmen^a
• 关键词：Nonlinear optics ; Pö ; schl&ndash ; Teller quantum well ; Intense laser field
• 刊名：Physics Letters A
• 出版年：2012
• 期刊代码：57_03759601
• 类别：ph
• 出版时间：7 May, 2012
• 卷：376
• 期：23
• 页码：1875-1880
• 文件大小：601 K

摘要

In this work, the effect of a non-resonant intense laser field on the optical rectification and second and third harmonic generation in a P枚schl-Teller quantum well is theoretically investigated. In this regard, the coefficients of nonlinear optical rectification and second and third harmonic generation are obtained by using the compact-density matrix approach and an iterative method. Different values of the asymmetry parameters of the P枚schl-Teller potential as well as intense laser field strength have been considered. Numerical results presented for a typical GaAs quantum wells show that higher-order optical effects are considerably sensitive to intense laser field and can be adjusted by a correct choice of asymmetry parameters of the potential.