Results 11 to 20 of about 98,442 (290)
Quantum orbital angular momentum of elliptically-symmetric light [PDF]
Physical Review A, 2012 We present a quantum mechanical analysis of the orbital angular momentum of a class of recently discovered elliptically-symmetric stable light fields --- the so-called Ince-Gauss modes.
Anton Zeilinger +5 more
core +6 more sources
Rapid Generation of Light Beams Carrying Orbital Angular Momentum [PDF]
Optics Express, 2013 We report a technique for encoding both amplitude and phase variations onto a laser beam using a single digital micro-mirror device (DMD). Using this technique, we generate Laguerre-Gaussian and vortex orbital-angular-momentum (OAM) modes, along with ...
Boyd, Robert W. +5 more
core +7 more sources
Observation of Interaction of Spin and Intrinsic Orbital Angular Momentum of Light [PDF]
Physical Review Letters, 2017 Interaction of spin and intrinsic orbital angular momentum of light is observed, as evidenced by length-dependent rotations of both spatial patterns and optical polarization in a cylindrically-symmetric isotropic optical fiber.
Gregg, Patrick +6 more
core +5 more sources
Photocurrent detection of the orbital angular momentum of light. [PDF]
Science, 2020 Optical vortices on demand Light has several degrees of freedom (wavelength, polarization, pulse length, and so on) that can be used to encode information. A light beam or pulse can also be structured to have the property of orbital angular momentum, becoming a vortex.
Ji Z +8 more
europepmc +4 more sources
Narrow band amplification of light carrying orbital angular momentum
Optics Express, 2016 We report on the amplification of an optical vortex beam carrying orbital angular momentum via induced narrow Raman gain in an ensemble of cold cesium atoms. A 20\% single-pass Raman gain of a weak vortex signal field is observed with a spectral width of
Barreiro, S. +4 more
core +3 more sources
High purity orbital angular momentum of light
Optics Express, 2022 We present a novel technique for generating beams of light carrying orbital angular momentum (OAM) that increases mode purity and decreases singularity splitting by orders of magnitude. This technique also works to control and mitigate beam divergence within propagation distances less than the Rayleigh length.
Andrew Sontag +2 more
openaire +3 more sources
Nonlinear Conversion of Orbital Angular Momentum States of light [PDF]
Frontiers in Optics + Laser Science 2021, 2021 We investigate the second harmonic generation of light field carrying orbital angular momentum in bulk χ(2) material. We show that due to conservation of energy and momentum, the frequency doubled beam light has a modified spatial distribution and mode characteristics.
Bassène, Pascal +5 more
openaire +2 more sources
Orbital angular momentum of light for communications [PDF]
Applied Physics Reviews, 2021 Structured light, especially beams carrying orbital angular momentum (OAM), has gained much interest due to its unique amplitude and phase structures. In terms of communication systems, multiple orthogonal OAM beams can be potentially utilized for increasing link capacity in different scenarios.
Alan E. Willner +4 more
openaire +1 more source
Machine-learning recognition of light orbital-angular-momentum superpositions [PDF]
Physical Review A, 2021 We developed a method to characterize arbitrary superpositions of light orbital angular momentum (OAM) with high fidelity by using astigmatic tomography and machine learning processing. In order to define each superposition unequivocally, we combine two intensity measurements.
B. Pinheiro da Silva +4 more
openaire +3 more sources
Optomechanical detection of light with orbital angular momentum
Optics Express, 2020 We present the design of an optomechanical device that allows sensitive transduction of the orbital angular momentum of light. An optically induced twist imparted on the device is detected using a photonic crystal cavity optomechanical system. This device allows the measurement of the orbital angular momentum of light when photons are absorbed by the ...
Hamidreza Kaviani +7 more
openaire +3 more sources