Enhanced Kerr nonlinearity in a quantized four-level graphene nanostructure. (31st May 2016)

• Record Type: Journal Article
• Authors: Solookinejad, Ghahraman; Panahi, M; Ahmadi, E; Hossein Asadpour, Seyyed
• Is Part Of: Chinese physics B. Volume 25:Number 7(2016)
• Publication Date: 2016-05-31
• Subjects: 42.65.–k -- 42.65.pc; Kerr nonlinearity -- graphene nanostructure -- linear absorption; Physics -- Periodicals; Physics; Periodicals; 530.05
• DOI: 10.1088/1674-1056/25/7/074204
• Languages: English
• ISSNs: 1674-1056

Abstract

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.