Journal ArticleDOI
Helical-wavefront laser beams produced with a spiral phaseplate
TLDR
In this paper, a spiral phaseplate can convert a TEM00 laser beam into a helical wavefront beam with a phase singularity at its axis, and the diffractive-optical effect of the spiral phase plate is implemented by index matching a macroscopic structure in an optical immersion.About:
This article is published in Optics Communications.The article was published on 1994-12-01. It has received 1393 citations till now. The article focuses on the topics: Laser beam quality & Beam diameter.read more
Citations
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Journal ArticleDOI
Light Propagation with Phase Discontinuities: Generalized Laws of Reflection and Refraction
Nanfang Yu,Patrice Genevet,Patrice Genevet,Mikhail A. Kats,Francesco Aieta,Francesco Aieta,Jean-Philippe Tetienne,Jean-Philippe Tetienne,Federico Capasso,Zeno Gaburro,Zeno Gaburro +10 more
TL;DR: In this article, a two-dimensional array of optical resonators with spatially varying phase response and subwavelength separation can imprint phase discontinuities on propagating light as it traverses the interface between two media.
Journal ArticleDOI
Orbital angular momentum: origins, behavior and applications
Alison M. Yao,Miles J. Padgett +1 more
TL;DR: In this paper, it was shown that if every polarization vector rotates, the light has spin; if the phase structure rotates and if a light has orbital angular momentum (OAM), the light can be many times greater than the spin.
Journal ArticleDOI
Optical spin-to-orbital angular momentum conversion in inhomogeneous anisotropic media
TL;DR: An optical process in which the spin angular momentum carried by a circularly polarized light beam is converted into orbital angular momentum, leading to the generation of helical modes with a wave-front helicity controlled by the input polarization is demonstrated.
Journal ArticleDOI
Optical communications using orbital angular momentum beams
Alan E. Willner,Hao Huang,Yan Yan,Yongxiong Ren,Nisar Ahmed,Guodong Xie,Changjing Bao,Long Li,Yinwen Cao,Zhe Zhao,Jian Wang,Martin P. J. Lavery,Moshe Tur,Siddharth Ramachandran,Andreas F. Molisch,Nima Ashrafi,Solyman Ashrafi +16 more
TL;DR: In this article, the authors review recent progress in OAM beam generation/detection, multiplexing/demultiplexing, and its potential applications in different scenarios including free-space optical communications, fiber-optic communications, and RF communications.
Journal ArticleDOI
Mechanical equivalence of spin and orbital angular momentum of light: an optical spanner.
TL;DR: It is shown that the spin angular momentum of +/-?per photon associated with circularly polarized light can add to, or subtract from, the orbital angular momentum to give a total angular momentum.
References
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Journal ArticleDOI
Orbital angular momentum of light and the transformation of Laguerre-Gaussian laser modes.
TL;DR: Laser light with a Laguerre-Gaussian amplitude distribution is found to have a well-defined orbital angular momentum and an astigmatic optical system may be used to transform a high-order LaguERre- Gaussian mode into aHigh-order Hermite-Gaussia mode reversibly.
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Astigmatic laser mode converters and transfer of orbital angular momentum
TL;DR: In this paper, a mode converter based on the Gouy phase was proposed to transform a Hermite-gaussian mode of arbitrarily high order to a Laguerre-Gaussian mode and vice versa.
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Generation of optical phase singularities by computer-generated holograms.
TL;DR: Laser beams that contain phase singularities can be generated with computer-generated holograms, which in the simplest case have the form of spiral Fresnel zone plates.
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Optical vortex solitons observed in Kerr nonlinear media
TL;DR: A single optical vortex soliton was experimentally created using a quasihelical phase mask and pairs having opposite topological charge were experimentally and numerically investigated using a convective Kelvin-Helmholtz instability of dark soliton stripes.
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Optics of light beams with screw dislocations
TL;DR: In this paper, the screw dislocations of different charges produced by diffraction on the computer-synthesized grating or by nonlinear processes of second- harmonic generation are experimentally studied and discussed.