Tight Focusing Properties of Phase Modulated Radially Polarized Laguerre Bessel Gaussian Beam

作     者：K.Prabakaran P.Sangeetha V.Karthik K.B.Rajesh A.M.Musthafa 

作者机构：Department of Physics Mahendra Arts and Science College (Autonomous) Namakkal Tamilnadu India Department of Physics Chikkanna Government Arts College Tiruppur Tamilnadu India Department of General Studies (Physics Group) Jubail University College (Male Branch) Royal Commission of Jubail Kingdom of Saudi Arabia 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2017年第34卷第5期

页      面：56-59页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0803[工学-光学工程] 0702[理学-物理学] 

主　　题：Tight Focusing Properties of Phase Modulated Radially Polarized Laguerre Bessel Gaussian Beam 

摘      要：We propose a new approach for generating a multiple focal spot segment of subwavelength size, by tight focusing of a phase modulated radially polarized Laguerre Bessel Gaussian beam. The focusing properties are investigated theoretically by .vector diffraction theory. We observe that the focal segment with multiple focal structures is separated with different axial distances and a super long dark channel can be generated by properly tuning the phase of the incident radially polarized Laguerre Bessel Gaussian beam. We presume that such multiple focal patterns and high intense beam may find applications in atom optics, optical manipulations and multiple optical trapping.