K. Prabakaran1*, P. Sangeetha1, V. Karthik1, K. B. Rajesh2, A. M. Musthafa3
1Department of Physics, Mahendra Arts and Science College (Autonomous), Namakkal, Tamilnadu, India 2Department of Physics, Chikkanna Government Arts College, Tiruppur, Tamilnadu, India 3Department of General Studies (Physics Group), Jubail University College (Male Branch), Royal Commission of Jubail, Kingdom of Saudi Arabia
Abstract：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.
. [J]. 中国物理快报, 2017, 34(5): 54203-.
K. Prabakaran, P. Sangeetha, V. Karthik, K. B. Rajesh, A. M. Musthafa. Tight Focusing Properties of Phase Modulated Radially Polarized Laguerre Bessel Gaussian Beam. Chin. Phys. Lett., 2017, 34(5): 54203-.
2017, Vol. 34 
