中国物理B ›› 2018, Vol. 27 ›› Issue (11): 114205-114205.doi: 10.1088/1674-1056/27/11/114205
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
Nonlinear coherent perfect photon absorber in asymmetrical atom-nanowires coupling system
Xiuwen Xia(夏秀文), Xinqin Zhang(张新琴), Jingping Xu(许静平), Mutian Cheng(程木田), Yaping Yang(羊亚平)
- 1 Institute of Atomic and Molecular Physics and Functional Materials, School of Mathematics and Physics, Jinggangshan University, Ji'an 343009, China;
2 MOE Key Laboratory of Advanced Micro-Structure Materials, School of Physics Science and Engineering, Tongji University, Shanghai 200092, China;
3 School of Electrical Engineering & Information, Anhui University of Technology, Maanshan 243002, China
Nonlinear coherent perfect photon absorber in asymmetrical atom-nanowires coupling system
Xiuwen Xia(夏秀文)1,2, Xinqin Zhang(张新琴)1, Jingping Xu(许静平)2, Mutian Cheng(程木田)3, Yaping Yang(羊亚平)2
- 1 Institute of Atomic and Molecular Physics and Functional Materials, School of Mathematics and Physics, Jinggangshan University, Ji'an 343009, China;
2 MOE Key Laboratory of Advanced Micro-Structure Materials, School of Physics Science and Engineering, Tongji University, Shanghai 200092, China;
3 School of Electrical Engineering & Information, Anhui University of Technology, Maanshan 243002, China
摘要：
Coherent perfect absorption provides a method of light-controlling-light and has practical applications in optical communications. Recently, a cavity-based nonlinear perfect photon absorption extends the coherent perfect absorber (CPA) beyond the linear regime. As nanowire-based system is a more competitive candidate for full-optical device, we introduce a nonlinear CPA in the single two-level atom-nanowires coupling system in this work. Nonlinear input-output relations are derived analytically, and three contributions of atomic saturation nonlinearity are explicit. The consociation of optical nonlinearity and destructive interference makes it feasible to fabricate a nonlinear monoatomic CPA. Our results also indicate that a nonlinear system may work linearly even when the incoming lights are not weak any more. Our findings show promising applications in full-optical devices.
中图分类号: (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
- 42.50.Gy