Simulation of Flat-top Focus Shaping Using Effect of Polarization in High Numerical Apertures Optical Systems

摘要：

　　Flat-top focus shaping using effect of polarization is investigated theoretically by vector diffraction theory.We demonstrate how to make a properly selected polarization component to achieve a flat-top focus in high numerical apertures optical systems,hence achieving a potential goal of beam shaping.The results show that the values of the polarization angle φ0 corresponding to different numerical apertures (NA)values for a flat-top focus and the polarization angle φ0 increases on increasing NA for achieving a flat-top focal spot,but the flat-top focal pattern will become φ0-sensitive when NA is larger than 1.One will have to add a diffractive optical element to achieve a flat-top focal spot in NA larger than 1 system.

关键词： Flat-top focus generalized cylindrical vector beam vector diffraction theory

作者: Ke Feng Jinsong Li Ling Guo

作者单位: College of Optical and Electronic Technology,China Jiliang University,Hangzhou 310018,P.R.China

会议类型: 国际会议

会议名称: 2012 International Meeting on Opto-Electronics Engineering and Materials Research(OEMR2012)(2012光电工程与材料国际会议)

会议地点: 沈阳

会议语种:英文

页码: 175-179

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）