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Temporal behavior of low-amplitude two-photon screening-photovoltaic grey spatial solitons |
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| Authors: | JI Xuan-mang JIANG Qi-chang WANG Jin-lai and LIU Jin-song |
| Affiliation: | (1) State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academic of Sciences, Xi’an, 710068, P.R. China;(2) Physics Faculty, Nonlinear Physics Group, Vienna University, Boltzmanngasse 5, 1090 Wien, Austria;(3) Department of Electronic Science and Technology, Xi’an Jiaotong University, Xi’an, 710049, P.R. China;(4) Department of Physics, Nankai University, Tianjin, 300071, P.R. China; |
| Abstract: | The time-dependent formation of one-dimensional two-photon screening-photovoltaic (PV) grey spatial solitons under low-amplitude conditions is presented theoretically. The time-dependent propagation equation of two-photon screening-photovoltaic solitons is obtained by the numerical method. The results indicate that as the time evolves, the intensity width of grey screening-photovoltaic spatial solitons decreases monotonously to a minimum value towards the steady state. The higher the ratio of soliton peak intensity to the dark irradiation intensity, the narrower the width of grey solitons within the propagation time. |
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