Study on vortex spectra sensing

具有轨道角动量的光学涡旋作为光学科学领域的一项新技术，以其独特的光学性质及其在DNA和生物细胞操作中的应用引起了人们极大的兴趣。迄今为止，人们对光学涡旋的产生和微小物体的作用进行了大量的研究，但对传感和/或测量的研究还很少。在这项研究中，首先，我们的目的是产生涡旋谱。其次，我们的目标是利用具有奇异点的涡旋光谱来提取与生物聚合物行为和物质组成相关的信息。实验表明，利用轴对称四分之一波片，涡旋光谱传感可以检测非均匀物理性质的偏振特性。

Optical vortex having an orbital angular momentum, as a latest technology in the field of optical sciences, has been attracted great interests to its unique optical properties and its applications as operations of DNA and biological cells. Up to day, there are a lot of researches for the generation of optical vortex and the operation of small objects, although there are hardly any researches related on the sensing and/or measurement. In this study, firstly, we aimed at generating the vortex spectra. Secondly, we aimed at bringing out the information related on the behavior of the biological polymer and the composition of the matter using vortex spectra with singularity points. It has been made clear that vortex spectra sensing can detect the properties of polarization of imhomogeneous physical properties using fabricated axisymetrical quarter wave plates.