Khonina Svetlana Nikolaevna, Kazanskiy Nikolay Lvovich, Karpeev Sergey Vladimirovich, Butt Muhammad Ali
Department of Technical Cybernetics, Samara National Research University, 443086 Samara, Russia.
IPSI RAS-Branch of the FSRC "Crystallography and Photonics" RAS, 443001 Samara, Russia.
Micromachines (Basel). 2020 Nov 11;11(11):997. doi: 10.3390/mi11110997.
Diffraction is a phenomenon related to the wave nature of light and arises when a propagating wave comes across an obstacle. Consequently, the wave can be transformed in amplitude or phase and diffraction occurs. Those parts of the wavefront avoiding an obstacle form a diffraction pattern after interfering with each other. In this review paper, we have discussed the topic of non-diffractive beams, explicitly Bessel beams. Such beams provide some resistance to diffraction and hence are hypothetically a phenomenal alternate to Gaussian beams in several circumstances. Several outstanding applications are coined to Bessel beams and have been employed in commercial applications. We have discussed several hot applications based on these magnificent beams such as optical trapping, material processing, free-space long-distance self-healing beams, optical coherence tomography, superresolution, sharp focusing, polarization transformation, increased depth of focus, birefringence detection based on astigmatic transformed BB and encryption in optical communication. According to our knowledge, each topic presented in this review is justifiably explained.
衍射是一种与光的波动性相关的现象，当传播的波遇到障碍物时就会出现。因此，波的振幅或相位会发生变化，从而产生衍射。波前绕过障碍物的那些部分在相互干涉后形成衍射图样。在这篇综述论文中，我们讨论了非衍射光束的主题，特别是贝塞尔光束。这种光束对衍射具有一定的抗性，因此在几种情况下理论上是高斯光束的一种非凡替代品。贝塞尔光束有几个杰出的应用，并已用于商业应用中。我们讨论了基于这些出色光束的几个热门应用，如光镊、材料加工、自由空间长距离自修复光束、光学相干断层扫描、超分辨率、锐聚焦、偏振变换、增加焦深、基于像散变换贝塞尔光束的双折射检测以及光通信中的加密。据我们所知，本综述中提出的每个主题都得到了合理的解释。
