过冷水溶液中的空间光孤子

发布时间：2018-05-21 21:35

本文选题：非线性薛定谔方程 + 过冷　；参考：《物理学报》2017年09期

【摘要】：建立了在过冷水溶液中传播的光束的非局域非线性模型.过冷水的热致折射率扰动在温度扰动较小的情况下随温度增大,但在温度扰动达到一定程度后随温度减小.在求出该模型的数值孤子解后,对孤子的性态进行了研究.研究表明,在光功率较小时,过冷水表现出自聚焦的特性,而在光功率较大时,在孤子的中心区域的过冷水表现出自散焦的特性,而在孤子的外围仍表现为自聚焦.在总功率较大的情况下,孤子间的相互作用也表现出这种部分自散焦,部分自聚焦的现象.
[Abstract]:The nonlocal nonlinear model of beams propagating in undercooled aqueous solution is established. The thermal refractive index perturbation of supercooled water increases with the temperature when the temperature disturbance is small, but decreases with the temperature disturbance to a certain extent. After the numerical soliton solution of the model is obtained, the behavior of the soliton is studied. The results show that the supercooled water exhibits self-focusing when the optical power is small, while the supercooled water in the central region of the soliton exhibits self-defocusing when the optical power is high, and the self-focusing at the periphery of the soliton. When the total power is high, the interaction between solitons also shows the phenomenon of partial self-defocusing and partial self-focusing.
【作者单位】：华南师范大学广东省微纳光子功能材料与器件重点实验室;华南师范大学广州市特种光纤光子器件重点实验室;
【基金】：国家自然科学基金(批准号:61008007)资助的课题~~
【分类号】：O437

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