Zhou Yi, Yuan Fengpei, Xie Guojun, Zhao Lichang
Appl Opt. 2021 Aug 1;60(22):6579-6584. doi: 10.1364/AO.431000.
An approach for image transmission based on the Airy array beam is proposed and demonstrated. The Airy array beam is generated by employing the product of a special cubic phase and a shift function at its Fourier plane. The image can be modulated into this Airy array beam by overlapping it at the Fourier plane of this beam. After passing through a certain distance, the image information can be recovered from the modulated Airy array beam by Fourier transform. Compared to the existing Airy array beam, higher integrity and image information quality can be achieved by increasing the width of the obstacle that blocks the propagation of these beams. The capability mentioned above is experimentally verified. Moreover, to research the diffraction of this Airy array beam in the scattering environment, the propagation process of this Airy array beam in a scattering medium is theoretically derived and numerically studied. The corresponding experiment demonstrates that the propagation process matches well with the numerical study and simulation.
提出并演示了一种基于艾里阵列光束的图像传输方法。艾里阵列光束是通过在其傅里叶平面上采用特殊三次相位与移位函数的乘积来产生的。通过在该光束的傅里叶平面上使其重叠，图像可以被调制到这个艾里阵列光束中。经过一定距离后，通过傅里叶变换可以从调制后的艾里阵列光束中恢复图像信息。与现有的艾里阵列光束相比，通过增加阻挡这些光束传播的障碍物的宽度，可以实现更高的完整性和图像信息质量。上述能力得到了实验验证。此外，为了研究这种艾里阵列光束在散射环境中的衍射，从理论上推导并数值研究了该艾里阵列光束在散射介质中的传播过程。相应的实验表明，传播过程与数值研究和模拟结果吻合良好。
