摘要
光学超表面超薄的特性和前所未有的灵活光操纵能力为产生特殊空间光模式提供了一个有效的平台.本文提出并通过实验验证了一个基于光学超表面的方法用于产生和调控具有多个相位奇点的复合涡旋光束(Composite vortex beam,CVB).由于其独特的光学特性,CVB应用前景广阔,可用于多光子阱、量子信息等.此前CVB可使用空间光调制器产生,然而其体积大、成本高、分辨率有限.这里设计的平台具有小型化的特征,更具实用性,为CVB的应用开辟了一条新途径.
The ultrathin feature and unprecedented flexible light manipulation capability of optical metasurfaces provide an effective platform for generating special optical spatial modes.In this paper,we propose and experimentally demonstrate a metasurface approach toward generating and manipulating composite vortex beams(CVBs)with multiple phase singularities.Due to its unique optical properties,CVBs look to broad applications and can be used in multiple optical traps and quantum information processing.While CVBs could be generated by using spatial light modulators(SLMs),SLMs are bulky,expensive,and limited in resolution.The platform proposed here has the characteristics of miniaturization and is more practical,which opens up a new way for future applications of CVBs.
作者
明阳
MING Yang(School of Electronic and Information Engineering,Changshu Institute of Technology,Changshu 215500,China)
出处
《常熟理工学院学报》
2023年第2期18-21,共4页
Journal of Changshu Institute of Technology
基金
国家自然科学基金面上项目“基于人工微纳结构材料的光子态不可分离性研究”(12274043)。
关键词
光学超表面
复合涡旋光束
相位奇点
optical metasurfaces
composite vortex beams
phase singularities
