title: Non-coaxial superposition of vector vortex beams.
abstract: Vector vortex beams are classified into four types depending upon spatial variation in their polarization vector. We have generated all four of these types of vector vortex beams by using a modified polarization Sagnac interferometer with a vortex lens. Further, we have studied the non-coaxial superposition of two vector vortex beams. It is observed that the superposition of two vector vortex beams with same polarization singularity leads to a beam with another kind of polarization singularity in their interaction region. The results may be of importance in ultrahigh security of the polarization-encrypted data that utilizes vector vortex beams and multiple optical trapping with non-coaxial superposition of vector vortex beams. We verified our experimental results with theory.
authors.forename: A
authors.initials: A
authors.lastname: Aadhi
authors.forename: Pravin
authors.initials: P
authors.lastname: Vaity
authors.forename: P
authors.initials: P
authors.lastname: Chithrabhanu
authors.forename: Salla Gangi
authors.initials: SG
authors.lastname: Reddy
authors.forename: Shashi
authors.initials: S
authors.lastname: Prabakar
authors.forename: R P
authors.initials: RP
authors.lastname: Singh