艾里涡旋光束通过负折射率介质的传输特性

Study on propagation properties of vortex Airy beams through negative index medium

摘要: 为了研究Airy涡旋光束通过负折射率介质(NIM)的传输动力学特性, 利用Collins公式推导出了Airy涡旋光束通过NIM的传输动力学方程, 并用该方程研究了Airy涡旋光束在NIM中的光强、涡旋、相位等传输特性。结果表明, 通过调节NIM的参数可实现对Airy涡旋光束主峰位置、涡旋位置、主峰与涡旋的重叠位置和光强的控制。光束在NIM中的特性研究在光学显微操控和光学分选等领域具有潜在价值。

Abstract: In order to investigate the propagation dynamics of vortex Airy beams passing through the negative index medium(NIM), the propagation dynamics equation was obtained based on the Collins formula. The intensity, vortex, and phase were studied by using the equation. The results show that it is possible to controlling the center lobe, superimposition position, and the intensity by adjusting the parameters of the negative index medium. All these properties of the propagation of the beam in NIM may have applications in areas such as optical micromanipulation and optical sorting.