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.

中文翻译：

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通过基于纤维的聚合物微尖端产生像贝塞尔一样的光束

我们提出了一种新颖有效的方法，可通过在单模光纤的端面上制造自增长的聚合物微尖端来生成贝塞尔式光束。为了产生这些光束，精确地优化了微尖端的长度和形状。具体来说，凸状液滴的高度及其光聚合参数在通过微尖端的贝塞尔状光束中具有显着特征。还详细研究了微尖的宽转换带宽和所产生的贝塞尔形光束的自愈特性。我们的微尖端为类贝塞尔光束的产生提供了一种有效，低成本和超紧凑的方式。