中国物理B ›› 2016, Vol. 25 ›› Issue (7): 74204-074204.doi: 10.1088/1674-1056/25/7/074204

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Enhanced Kerr nonlinearity in a quantized four-level graphene nanostructure

Ghahraman Solookinejad, M Panahi, E Ahmadi, Seyyed Hossein Asadpour   

  1. Department of Physics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
  • 收稿日期:2016-01-11 修回日期:2016-02-12 出版日期:2016-07-05 发布日期:2016-07-05
  • 通讯作者: Seyyed Hossein Asadpour E-mail:S.Hosein.Asadpour@gmail.com

Enhanced Kerr nonlinearity in a quantized four-level graphene nanostructure

Ghahraman Solookinejad, M Panahi, E Ahmadi, Seyyed Hossein Asadpour   

  1. Department of Physics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
  • Received:2016-01-11 Revised:2016-02-12 Online:2016-07-05 Published:2016-07-05
  • Contact: Seyyed Hossein Asadpour E-mail:S.Hosein.Asadpour@gmail.com

摘要: In this paper, a new model is proposed for manipulating the Kerr nonlinearity of right-hand circular probe light in a monolayer of graphene nanostructure. By using the density matrix equations and quantum optical approach, the third-order susceptibility of probe light is explored numerically. It is realized that the enhanced Kerr nonlinearity with zero linear absorption can be provided by selecting the appropriate quantities of controllable parameters, such as Rabi frequency and elliptical parameter of elliptical polarized coupling field. Our results may be useful applications in future all-optical system devices in nanostructures.

关键词: Kerr nonlinearity, graphene nanostructure, linear absorption

Abstract: In this paper, a new model is proposed for manipulating the Kerr nonlinearity of right-hand circular probe light in a monolayer of graphene nanostructure. By using the density matrix equations and quantum optical approach, the third-order susceptibility of probe light is explored numerically. It is realized that the enhanced Kerr nonlinearity with zero linear absorption can be provided by selecting the appropriate quantities of controllable parameters, such as Rabi frequency and elliptical parameter of elliptical polarized coupling field. Our results may be useful applications in future all-optical system devices in nanostructures.

Key words: Kerr nonlinearity, graphene nanostructure, linear absorption

中图分类号:  (Nonlinear optics)

  • 42.65.-k
42.65.Pc (Optical bistability, multistability, and switching, including local field effects)