Abstract

Light beam with helical wavefront carries well-defined orbital angular momentum (OAM) specified by its topological charge (TC). The off-axis self-interference of laterally displaced vortex beams results into interferogram consisting of pair of fork-like structures. In this study, it has been demonstrated that the interferogram consisting of conjoined fork-like structures allow simpler and unambiguous way of determining the sign and magnitude of TC carried by incoming vortex beam using interferogram analysis method. The method uses a Mach-Zehnder interferometer to introduce lateral displacement and tilt angles between the interfering beams.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.