Multiplexing and demultiplexing of optical orbital angular momentum(OAM)are critical operations in modedivision multiplexing communications.Traditional Dammann gratings,spiral phase planes,and optical geometric transformations are regarded as convenient methods for OAM mode(de)multiplexing.However,crosstalk between...
Multiplexing multiple orbital angular momentum (OAM) channels enables high-capacity optical communication. However, optical scattering from ambient microparticles in the atmosphere or mode coupling in optical fibers significantly decreases the orthogonality between OAM channels for demultiplexing and eventually ...
optical orbital angular momentum to the valence electron of a single trapped ion. We observe strongly modified selection rules showing that an atom can absorb two quanta of angular momentum from a single photon: one from the spin and another from the spatial structure of the beam. Furthermore,...
Optical orbital angular momentum 来自 Semantic Scholar 喜欢 0 阅读量: 133 作者:SM Barnett,M Babiker,MJ Padgett 摘要: We present a brief introduction to the orbital angular momentum of light, the subject of our theme issue and, in particular, to the developments in the 13 years following the...
Optical spin-to-orbital angular momentum conversion in inhomogeneous anisotropic media L. Marrucci,? C. Manzo, and D. Paparo Dipartimento di Scienze Fisiche, Universit` a di Napoli “Federico II” and CNR-INFM Coherentia, arXiv:0712.0099v1 [physics.optics] 1 Dec 2007 Compl. di Monte S....
orbital angular momentum in a transmission electron microscope at 300 kV. We observed an increase in the intensity of the zero orbital angular momentum com... T Harvey,J Chess,J Pierce,... - Meeting of the Northwest Section of the Aps 被引量: 1发表: 2014年 Electron vortices: Beams with...
The orbital-angular-momentum (OAM) modes in optical fibers have polarization mode dispersion (PMD) properties similar to those of single-mode fibers (SMFs). The +l and -l order OAM modes supported by the same fiber vector modes undergo random cross coupling and exhibit a frequency-dependent ti...
We report an analysis of the orbital angular momentum of an optical beam misaligned with respect to a reference axis. Both laterally displaced and angularly deflected Laguerre-Gaussian beams are represented in terms of the superposition of azimuthal harmonics with well-defined orbital angular momentum....
Orbital angular momentum (OAM) of laser beams has potential application in free space optical communication, but it is sensitive against pointing instabilities of the beam, i.e. shift (lateral displacement) and tilt (deflection of the beam). This work proposes a method to correct the distorted ...