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Dynamic interferometry measurement of orbital angular momentum of light [PDF]
Optics Letters, 2014 We present a dynamic interferometry to measure the orbital angular momentum (OAM) of beams. An opaque screen with two nonparallel air slits is employed that can be regarded as the Young's double-pinhole interference. When the OAM beams with an annular intensity distribution vertically incident, the far-field interference patterns depend on the phase ...
Hailong, Zhou +3 more
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Local angular momentum induced dual orbital effect
APL Photonics, 2022 Spin angular momentum (SAM) and orbital angular momentum (OAM) are two important fundamental degrees of freedom of light and play crucial roles in various light–matter interactions.
Qiang Wang +6 more
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Plasmonic Spiral Nanostructure for Analyzing the Angular Momentum of Light
IEEE Photonics Journal, 2017 A compound plasmonic light analyzer with an elliptical Archimedean spiral nanostructure is proposed analytically and analyzed numerically. The elliptical Archimedean spiral is analogous to an ellipse but has varying semimajor axes.
Haiwen Wang +3 more
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Diffraction properties of light with transverse orbital angular momentum
Optica, 2022 The spatiotemporal optical vortex (STOV) is unique, owing to its phase singularity in the space–time domain, and it can carry transverse orbital angular momentum (OAM). Diffraction is a fundamental wave phenomenon that is well known for conventional light; however, studies on the diffraction of light with transverse OAM are limited.
Huang, Shunlin +4 more
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Quantum multiplexing with the orbital angular momentum of light [PDF]
Physical Review A, 2008 The orbital angular momentum, OAM, of photons offers a suitable support to carry the quantum data of multiple users. We present two novel optical setups that send the information of n quantum communication parties through the same free-space optical link.
Garcia-Escartin, Juan Carlos +1 more
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The photonic wheel - demonstration of a state of light with purely transverse angular momentum [PDF]
Journal of the European Optical Society-Rapid Publications, 2013 In classical mechanics, a system may possess angular momentum which can be either transverse (e.g. in a spinning wheel) or longitudinal (e.g. for a spiraling seed falling from a tree) with respect to the direction of motion. However, for light, a typical
Banzer P. +6 more
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Quark angular momentum in a spectator model
Physics Letters B, 2015 We investigate the quark angular momentum in a model with the nucleon being a quark and a spectator. Both scalar and axial-vector spectators are included.
Tianbo Liu, Bo-Qiang Ma
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Nature Communications, 2020 Orbital angular momentum takes several forms in structured light beams. Here, the authors demonstrate control of dynamic spatiotemporal beams combining two forms of orbital angular momenta, by coherently adding frequency comb lines.
Zhe Zhao +12 more
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Conversion of twisted light to twisted excitons using carbon nanotubes
npj Computational Materials, 2022 Carbon nanotubes are explored as a means of coherently converting the orbital angular momentum of light to an excitonic form that is more amenable to quantum information processing. An analytical analysis, based on dynamical conductivity, is used to show
Xiaoning Zang +3 more
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Spin-to-Orbital Angular Momentum Mapping of Polychromatic Light [PDF]
Physical Review Letters, 2018 Reflective geometric phase flat optics made from chiral anisotropic media recently unveiled a promising route towards polychromatic beam shaping. However, these broadband benefits are strongly mitigated by the fact that flipping the incident helicity does not ensure geometric phase reversal.
Mushegh, Rafayelyan, Etienne, Brasselet
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