Probing the topological charge of a vortex beam with dynamic angular double slits
arXiv:1501.05986 · doi:10.1364/OL.40.000788
Abstract
When a vortex beam with the spiral phase structure passes through a dynamic angular double slits (ADS), the interference pattern changes alternatively between destructive and constructive at the angular bisector direction of the ADS due to their phase difference. Based on this property, we experimentally demonstrate a simple method, which can precisely and efficiently determine the topological charge of vortex beams. What is more, this scheme allows determining both the modulus and sign of the topological charge of vortex beams simultaneously.
4 pages, 4 figures
References in corpus (8)
- Management of the Angular Momentum of Light: Preparation of Photons in Multidimensional Vector States of Angular
- Efficient separation of the orbital angular momentum eigenstates of light
- Quantum information transfer from spin to orbital angular momentum of photons
- Measuring Entangled Qutrits and Their Use for Quantum Bit Commitment
- Direct Measurement of a 27-Dimensional Orbital-Angular-Momentum State Vector
- Entanglement of the orbital angular momentum states of the photons generated in a hot atomic ensemble
- Characterizing vortex beam with angular-double-slit interference
- Implementing the Deutsch's algorithm with spin-orbital angular momentum of photon without interferometer