Influence of Fano interference and incoherent processes on optical bistability in a four-level quantum dot nanostructure. (20th January 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 3(2016)
• Publication Date: 2016-01-20
• Subjects: 42.50.–p -- 42.65.–k; optical bistability -- Fano interference -- incoherent pumping fields -- quantum dot nanostructure; Physics -- Periodicals; Physics; Periodicals; 530.05
• DOI: 10.1088/1674-1056/25/3/034205
• Languages: English
• ISSNs: 1674-1056

Abstract

Abstract: Role of Fano interference and incoherent pumping field on optical bistability in a four-level designed InGaN/GaN quantum dot nanostructure embedded in a unidirectional ring cavity are analyzed. It is found that intensity threshold of optical bistability can be manipulated by Fano interference. It is shown that incoherent pumping fields make the threshold of optical bistability behave differently by Fano interference. Moreover, in the presence of Fano interference the medium becomes phase-dependent. Therefore, the relative phase of applied fields can affect the behaviors of optical bistability and intensity threshold can be controlled easily.