653 citations · 1.4k across the 6 of their papers we have counts for
6 papers
High-dimensional quantum cryptography with twisted light
Mohammad Mirhosseini, Omar S. Magaña-Loaiza, Malcolm N. O'Sullivan +6
Quantum key distributions (QKD) systems often rely on polarization of light for encoding, thus limiting the amount of information that can be sent per photon and placing tight boun…
Near-Perfect Sorting of Orbital Angular Momentum and Angular Position States of Light
Malcolm N. O'Sullivan, Mohammad Mirhosseini, Mehul Malik +1
We present a novel method for efficient sorting of photons prepared in states of orbital angular momentum (OAM) and angular position (ANG). A log-polar optical transform is used in…
Influence of atmospheric turbulence on states of light carrying orbital angular momentum
Brandon Rodenburg, Martin P. J. Lavery, Mehul Malik +5
We have experimentally studied the degradation of mode purity for light beams carrying orbital angular momentum (OAM) propagating through simulated atmospheric turbulence. The turb…
Influence of Atmospheric Turbulence on Optical Communications using Orbital Angular Momentum for Encoding
Mehul Malik, Malcolm O'Sullivan, Brandon Rodenburg +5
We describe an experimental implementation of a free-space 11-dimensional communication system using orbital angular momentum (OAM) modes. This system has a maximum measured OAM ch…
Temporal Coherence and Indistinguishability in Two-Photon Interference Effects
Anand Kumar Jha, Malcolm N. O'Sullivan, Kam Wai Clifford Chan +1
We show that temporal two-photon interference effects involving the signal and idler photons created by parametric down-conversion can be fully characterized in terms of the variat…
Conditional preparation of states containing a definite number of photons
Malcolm N. O'Sullivan, Kam Wai Clifford Chan, Vasudevan Lakshminarayanan +1
A technique for conditionally creating single- or multimode photon-number states is analyzed using Bayesian theory. We consider the heralded N-photon states created from the photon…