Structured light have made deep impacts on modern biotechnology and clinical practice, with numerous optical systems and lasers currently being used in medicine to treat disease. We demonstrate a new concept of fiber‐based optical hook scalpel. The subwavelength photonic hook is obtained in the vicinity of a shaped fiber tip with asymmetric radiation. A 1550 nm continuous‐wave source, commonly used for medical imaging, has been required. Photonic hook with a lateral feature size less than the half‐wavelength is achieved using a hemispherical shaped fiber tip with metallic mask. This breakthrough is carried out in ambient air by using a 4‐μm‐diameter fiber with a shaped tip. A good correlation is observed between the computed intensity distribution of photonic hook and the tip sizes. Photonic hook generated with a shaped fiber tip, easier to manipulate, shows far‐reaching benefits for potential applications such as ophthalmic laser surgery, super‐resolution microscopy, photolithography and material processing.

中文翻译：

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非对称辐射形光纤尖端产生的光子钩手术刀的概念

结构光对现代生物技术和临床实践产生了深远的影响，目前在医学上用于治疗疾病的众多光学系统和激光器。我们演示了一种基于光纤的光学挂钩手术刀的新概念。亚波长光子钩是在具有不对称辐射的成形光纤尖端附近获得的。需要一个通常用于医学成像的1550 nm连续波源。使用带有金属掩膜的半球形光纤尖端可实现横向特征尺寸小于半波长的光子钩。这种突破是通过使用直径为4μm且具有定型尖端的光纤在环境空气中实现的。在计算出的光子钩的强度分布和尖端尺寸之间观察到良好的相关性。带有成形光纤尖端的光子钩，