共 43 条
Optical bistability and multistability in a defect slab doped by GaAs/AlGaAs multiple quantum wells
被引:3
作者:
Asadpour, Seyyed Hossein
[1
]
Solookinejad, G.
[1
]
Panahi, M.
[1
]
Sangachin, E. Ahmadi
[1
]
机构:
[1] Islamic Azad Univ, Marvdasht Branch, Dept Phys, Marvdasht, Iran
关键词:
optical bistability;
optical multistability;
quantum well nanostructure;
ENHANCED KERR NONLINEARITY;
SPIN COHERENCE;
DOT;
D O I:
10.1088/1674-1056/25/5/054208
中图分类号:
O4 [物理学];
学科分类号:
0702 ;
摘要:
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 Al-0.3 Ga0.7As 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.
引用
收藏
页数:6
相关论文