激光与光电子学进展, 2018, 55 (10): 101901, 网络出版: 2018-10-14
Airy光束在负极化纳米悬浊液中诱导弯曲体波导
Curved Volume Waveguide Induced by Airy Beams in Nanosuspensions with Negative Polarizability
摘要
从Smoluchowski方程和Nernst-Planck方程出发, 推导出负极化纳米悬浊液中有效折射率与光强呈e指数关系, 提出了利用Airy光束在负极化纳米悬浊液中诱导弯曲波导, 分析了所诱导的波导结构的波导尺寸。由于负极化纳米悬浮液的饱和非线性, 所诱导弯曲波导结构可以非常稳定。为了验证所提方法, 数值仿真模拟了不同Airy光束在负极化纳米悬浊液中诱导的弯曲波导, 讨论了波导性质与诱导光束和负极化纳米悬浊液参数之间的关系。结果表明, 通过控制入射Airy光束的传播行为, 综合考虑选取合适的诱导光束和负极化纳米悬浊液, 能够实现诱导不同尺寸的弯曲波导。研究结果为在介质中建立波导结构提供了一种新的途径, 所提方法在实际中有潜在的应用价值, 特别是在光束相干合成、光子集成、光学操纵等领域。
Abstract
Starting from the Smoluchowski and Nernst-Planck equations, we demonstrated that the effective refractive index exponentially depends on the optical intensity in nanosuspensions with negative polarizability. We proposed a method for inducing curved waveguide structures by Airy beams in the nanosuspensions, and we theoretically analyzed the size of the curved waveguides. Moreover, we simulated various curved waveguides induced by different Airy beams, and discussed the relationship among the curved waveguide, Airy beams and the parameters of nanosuspensions. As shown in this research, by the control of the incident propagation behavior of Airy beams and the nanosuspension, the curved waveguides with different-sized structures can be induced. The results provide a novel method for creating a waveguide structure in a volume medium, which may find practical applications, especially for coherent beams combination, integrated photonics integration and optical manipulation.
梁欣丽, 张泽. Airy光束在负极化纳米悬浊液中诱导弯曲体波导[J]. 激光与光电子学进展, 2018, 55(10): 101901. Liang Xinli, Zhang Ze. Curved Volume Waveguide Induced by Airy Beams in Nanosuspensions with Negative Polarizability[J]. Laser & Optoelectronics Progress, 2018, 55(10): 101901.