Tan Jingyu, Yu Ruowei, Xiao Limin
Opt Lett. 2019 Feb 15;44(4):1007-1010. doi: 10.1364/OL.44.001007.
We present a novel and efficient approach to generating Bessel-like beams through fabricating self-growing polymer microtips at the facet of single-mode fibers. To produce these beams, the length and shape of microtips were precisely optimized. Specifically, the convex droplet height and its photopolymerization parameters feature prominently in Bessel-like beams via microtips. A wide conversion bandwidth of the microtips and self-healing properties of the produced Bessel-like beam were also investigated in detail. Our microtips provide an effective, low-cost, and ultra-compact way for Bessel-like beams generation.
我们提出了一种新颖且高效的方法，通过在单模光纤端面上制造自生长聚合物微尖端来产生类贝塞尔光束。为了产生这些光束，对微尖端的长度和形状进行了精确优化。具体而言，微尖端的凸液滴高度及其光聚合参数在通过微尖端产生的类贝塞尔光束中起着重要作用。还详细研究了微尖端的宽转换带宽以及所产生的类贝塞尔光束的自愈特性。我们的微尖端为产生类贝塞尔光束提供了一种有效、低成本且超紧凑的方式。
