The circular and elliptic white-light dark spatial solitons in a photovoltaic self-defocusing nonlinear medium |
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| Authors: | Yuanmei Gao Ru Guo Zhaohong Liu Tao Song Nan Zhu |
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| Affiliation: | The Key Lab of Advanced Technique and Fabrication For Weak-Light Nonlinear Photonics Materials, Ministry of Education, Photonics Center, College of Physics Science, Nankai University, Tianjin 300071, PR China |
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| Abstract: | We observed circular white-light dark spatial solitons in photovoltaic self-defocusing LiNbO3:Fe crystal using an ordinary incandescent lamp as light source (a line source) with the filament of the bulb parallel to the crystalline c axis. Besides the above condition, the formation of the elliptic soliton needs an additive condition that the crystalline c axis is parallel to the minor axis of dark elliptic spot. |
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| Keywords: | 2.65.+W 42.79.+G |
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