Photonic Angular Superresolution Using Twisted N00N States
Markus Hiekkamäki, Frédéric Bouchard, Robert Fickler
Abstract
The increased phase sensitivity of N00N states has been used in many experiments, often involving photon paths or polarization. Here we experimentally combine the phase sensitivity of N00N states with the orbital angular momentum (OAM) of photons up to 100 ℏ, to resolve rotations of a light field around its optical axis. The results show that both a higher photon number and larger OAM increase the resolution and achievable sensitivity. The presented method opens a viable path to unconditional angular supersensitivity and accessible generation of N00N states between any transverse light fields.
Topics & Concepts
PhysicsAngular momentumPhotonSensitivity (control systems)PhotonicsOpticsPhase (matter)Orbital angular momentum of lightAngular resolution (graph drawing)Field (mathematics)Angular momentum of lightTransverse planeOptical pathRotation (mathematics)Geometric phaseAngular momentum couplingLight fieldPath (computing)Phase matchingSuperresolutionQuantum mechanicsQuantum opticsPhoton entanglementResolution (logic)Quantum optics and atomic interactionsOrbital Angular Momentum in OpticsNeural Networks and Reservoir Computing