We investigated the Talbot effect in an anti-parity-time (PT) symmetric synthetic photonic lattice composed of two coupled fiber loops. We calculated the band structures and found that with an increase in the gain-loss parameter, the band transitions from a real spectrum to a complex spectrum. We study the influence of phase in the Hermitian operator on the Talbot effect, and the Talbot effect disappears when the period of the input field is N > 8. Further study shows that the variation of Talbot distance can also be modulated by non-Hermitian coefficients of gain and loss. This work may find significant applications in pulse repetition-rate multiplication, temporal invisibility, and tunable intensity amplifiers.

放射性废油是核电机组运行产生的有机“疑难废物”之一，针对该类废物开发了基于氧化老化法的核素分离净化处理工艺，研制一套放射性废油核素分离净化处理工程装置并实现了工程应用。结果表明：氧化老化工艺去污系数可达两个量级以上；使用工程装置处理后的废油达到清洁解控水平，可作为普通危险废物进行管理；处理后废油焚烧供热过程（包括运输）中可能造成的额外附加剂量远远低于剂量限值，满足再利用过程的剂量准则，符合废物最小化原则。

Self-healing in optics generally refers to the ability to reconstruct itself and restore the original state after encountering obstacles in the propagation of the light field. In this research, we observe the processes of the wave fields from perfect to defect in front of the focal plane of the 4f system, finally returning to an intact situation after the plane. According to simulations and experimental results, there is a minimum self-healing distance for the moiré lattice field that positively associates with the radius of the defect (obstacle) in the nondiffracting transmission range. Furthermore, it is observed that the defect self-healing is a process of “repairing the center and then repairing the edges.” These findings can be applied in areas such as optical imaging, capture, and information processing.