Controlling Conical Beam Carrying Orbital Angular Momentum with Transmissive Metasurface
نویسندگان
چکیده
منابع مشابه
Do waves carrying orbital angular momentum possess azimuthal linear momentum?
All beams are a superposition of plane waves, which carry linear momentum in the direction of propagation with no net azimuthal component. However, plane waves incident on a hologram can produce a vortex beam carrying orbital angular momentum that seems to require an azimuthal linear momentum, which presents a paradox. We resolve this by showing that the azimuthal momentum is not a true linear ...
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When linearly polarised light is transmitted through a spinning window, the plane of polarisation is rotated. This rotation arises through a phase change that is applied to the circularly polarised states corresponding to the spin angular momentum (SAM). Here we show an analogous effect for the orbital angular momentum (OAM), where a differential phase between the positive and negative modes (±...
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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 modes in a set that is mutually unbiased with respect to the OAM basis. Additionally, we have demonstrated rapid switching among the generated mod...
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In classical optics theWolf function is the natural analogue of the quantumWigner function and like the latter itmay be negative in some regions.We discuss the implications this negativity has on the generalized ray interpretation of free-space paraxial wave evolution. Important examples include two classes of beams carrying optical orbital angularmomentum—Laguerre–Gaussian (LG) andBessel beams...
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ژورنال
عنوان ژورنال: International Journal of Antennas and Propagation
سال: 2021
ISSN: 1687-5877,1687-5869
DOI: 10.1155/2021/9951644