中国物理B ›› 2016, Vol. 25 ›› Issue (3): 34205-034205.doi: 10.1088/1674-1056/25/3/034205

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

Influence of Fano interference and incoherent processes on optical bistability in a four-level quantum dot nanostructure

Seyyed Hossein Asadpour, G Solookinejad, M Panahi, E Ahmadi Sangachin   

  1. Department of Physics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
  • 收稿日期:2015-06-27 修回日期:2015-10-05 出版日期:2016-03-05 发布日期:2016-03-05
  • 通讯作者: Seyyed Hossein Asadpour E-mail:S.Hosein.Asadpour@gmail.com

Influence of Fano interference and incoherent processes on optical bistability in a four-level quantum dot nanostructure

Seyyed Hossein Asadpour, G Solookinejad, M Panahi, E Ahmadi Sangachin   

  1. Department of Physics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
  • Received:2015-06-27 Revised:2015-10-05 Online:2016-03-05 Published:2016-03-05
  • Contact: Seyyed Hossein Asadpour E-mail:S.Hosein.Asadpour@gmail.com

摘要:

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.

关键词: optical bistability, Fano interference, incoherent pumping fields, quantum dot nanostructure

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.

Key words: optical bistability, Fano interference, incoherent pumping fields, quantum dot nanostructure

中图分类号:  (Quantum optics)

  • 42.50.-p
42.65.-k (Nonlinear optics)