ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Spatial weak-light ring soliton in self-assembled quantum dots |
Chen Qiu-Cheng (陈秋成) |
Department of Physics and Electronic Information Science, Hengyang Normal University, Hengyang 421008, China |
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Abstract By using semiclassical theory combined with multiple-scale method, we analytically study the linear absorption and the nonlinear dynamical properties in a lifetime broadened Λ -type three-level self-assembled quantum dots. It is found that this system can exhibit the transparency, and the width of the transparency window becomes wider with the increase of control light field. Interestingly, a weak probe light beam can form spatial weak-light dark solitons. When it propagates along the axial direction, the soliton will transform into a steady spatial weak-light ring dark soltion. In addition, the stability of two-dimensional spatial optical solitons is testified numerically.
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Received: 19 January 2014
Revised: 16 May 2014
Accepted manuscript online:
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PACS:
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42.65.Tg
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(Optical solitons; nonlinear guided waves)
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42.50.Gy
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(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
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02.90.+p
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(Other topics in mathematical methods in physics)
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Fund: Project supported by the Special Funds of the National Natural Science Foundation of China (Grant No. 11247313). |
Corresponding Authors:
Chen Qiu-Cheng
E-mail: chenqiucheng68@126.com
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Cite this article:
Chen Qiu-Cheng (陈秋成) Spatial weak-light ring soliton in self-assembled quantum dots 2014 Chin. Phys. B 23 124212
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