Manipulating Airy beams to symmetric Airy beams (SABs) with abruptly autofocusing and self-accelerating properties has attracted much attention. With such a particular propagation dynamic, SABs may provide great potential in dynamic signal imaging. On the other hand, the generation of SABs by spatial light modulators suffers from the limitations of phase gradient accuracy, low optical efficiency (<40%), and a bulky footprint. Therefore, exploring imaging applications and optimal generation methods of these Airy-type beams deserves further research. Here, based on the coordinate transformation of SAB, an asymmetric Airy beam (AAB) is realized. Symmetric/asymmetric cubic phase microplates (SCPPs/ACPPs) are designed and fabricated for generating SAB/AAB. The SCPP/ACPP demonstrates superior performance: compact construction (60 μm×60 μm×1.1 μm), continuous variation of phase, high efficiency (∼81% at 532 nm), and broadband operation from 405 to 780 nm. Dynamic imaging under monochromatic and polychromatic lights is realized by the SAB/AAB, indicating various results at different propagation distances with a certain initial signal. Further investigation reveals that the SCPP on a soft substrate maintains its physical dimensions and optical properties unchanged during stretching. Our work enables wide potential applications in integrated optics, beam manipulation, and imaging.

中文翻译：

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飞秒激光直写通过高效宽带相位微元件进行动态艾里成像

将艾里光束操纵成具有突然自动聚焦和自加速特性的对称艾里光束 (SAB) 已经引起了很多关注。凭借这种特殊的传播动态，SAB 可能在动态信号成像中提供巨大的潜力。另一方面，空间光调制器产生的 SAB 受到相位梯度精度、低光学效率 (<40%) 和体积大的限制。因此，探索这些艾里型光束的成像应用和优化生成方法值得进一步研究。在这里，基于 SAB 的坐标变换，实现了非对称艾里光束 (AAB)。对称/不对称立方相微板 (SCPPs/ACPPs) 是为生成 SAB/AAB 而设计和制造的。SCPP/ACPP 表现出卓越的性能：结构紧凑（60 μm×60 μm×1.1 μm），相位的连续变化、高效率（在 532 nm 处约为 81%）以及从 405 到 780 nm 的宽带操作。SAB/AAB实现了单色光和多色光下的动态成像，在一定的初始信号下显示不同传播距离下的各种结果。进一步的研究表明，软基材上的 SCPP 在拉伸过程中保持其物理尺寸和光学性能不变。我们的工作在集成光学、光束操纵和成像方面具有广泛的潜在应用。进一步的研究表明，软基材上的 SCPP 在拉伸过程中保持其物理尺寸和光学性能不变。我们的工作在集成光学、光束操纵和成像方面具有广泛的潜在应用。进一步的研究表明，软基材上的 SCPP 在拉伸过程中保持其物理尺寸和光学性能不变。我们的工作在集成光学、光束操纵和成像方面具有广泛的潜在应用。