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Effect of spherical aberration on tightly focused cylindrically polarized vortex beams |
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| Authors: | G Therese Anita C Amala Prathiba Janet K Prabakaran TVS Pillai KB Rajesh |
| Institution: | 1. Department of Physics, Arunachala College of Engineering for Women, Nagercoil, Tamil Nadu, India;2. Department of Physics, St. Xavier''s Catholic College of Engineering, Nagercoil, Tamil Nadu, India;3. Department of Physics, Periyar Universit- PG Extension Centre, Dharmapuri, Tamil Nadu, India;4. Department of Physics, Chikkanna Government Arts College, Tiruppur, Tamil Nadu, India |
| Abstract: | In this paper attention is given to the effects of primary spherical aberration on the cylindrical polarized vortex beam based on the vector diffraction theory. It is observed that by properly choosing the polarization angle and topological charge one can obtain many novel focal patterns suitable for optical tweezers, laser printing and material process. However, it is observed that the focusing objective with spherical aberration generates structural modification and positional shift of the generated focal structure. |
| Keywords: | Vector diffraction theory Cylindrical vortex beam Polarization Spherical aberration |
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