被动方式产生近似无衍射贝塞尔光技术

无衍射光束具有中心光斑小且不随传播距离变化、自再现、产生局域空心光等特点,由于这些特殊的光束特性而在许多领域,如计量学,经典光学,非线性光学和生命科学等领域中得到广泛的应用。无衍射光束的产生与变换是目前的一个研究热点。通过衍射理论、干涉理论和几何光学方法可对无衍射光进行描述。实现无衍射贝塞尔光束的方法可分为主动式和被动式。本文主要综述地介绍了几种被动式产生近似无衍射贝塞尔光束的最新技术,通过分析其优缺点,给出了这些技术的适用范围。

Generating approximate non-diffracting Bessel beams by using passive method

Bessel beams have received a wide number of applications in many fields, from metrology, classical optics to nonlinear optics and life science, owing to their special beams properties which the core of the beam is small and invariant propagation, self-healing and realized bottle beam。 The generation and transformation of the nondiffracting beam is an active research field nowadays。The propagation properties of the Bessel beam were described based on interferential theory, diffraction theory and geometrical optical theory。 The generation methods of nondiffracting Bessel beams can be divided into active and passive。 In this paper, three new passive generating methods have been given。 By analyzing the advantages and disadvantages of these generating methods, we proposed the scope of their applications。