Optical bistability and multistability in a defect slab doped by GaAs/AlGaAs multiple quantum wells. (1st April 2016)

• Record Type: Journal Article
• Authors: Hossein Asadpour, Seyyed; Solookinejad, G; Panahi, M; Ahmadi Sangachin, E
• Is Part Of: Chinese physics B. Volume 25:Number 5(2016)
• Publication Date: 2016-04-01
• Subjects: 42.50.–p -- 42.65.pc; optical bistability -- optical multistability -- quantum well nanostructure; Physics -- Periodicals; Physics; Periodicals; 530.05
• DOI: 10.1088/1674-1056/25/5/054208
• Languages: English
• ISSNs: 1674-1056

Abstract

Abstract: We proposed a new model for controlling the optical bistability (OB) and optical multistability (OM) in a defect slab doped with four-level GaAs/AlGaAs multiple quantum wells with 15 periods of 17.5 nm GaAs wells and 15-nm Al0.3 Ga0.7 As barriers. The effects of biexciton energy renormalization, exciton spin relaxation, and thickness of the slab on the OB and OM properties of the defect slab were theoretically investigated. We found that the transition from OB to OM or vice versa is possible by adjusting the controllable parameters in a lab. Moreover, the transmission, reflection, and absorption properties of the weak probe light through the slab were also discussed in detail.