Results 11 to 20 of about 1,428 (260)
Optics Letters, 2014 In this Letter a new class of light beam arisen from the symmetrization of the spectral cubic phase of an Airy beam is presented. The symmetric Airy beam exhibits peculiar features. It propagates at initial stages with a single central lobe that autofocuses and then collapses immediately behind the autofocus. Then, the beam splits into two specular off-
JOSÉ A Rodrigo +2 more
exaly +5 more sources
Terahertz circular Airy vortex beams [PDF]
Scientific Reports, 2017 Vortex beams have received considerable research interests both in optical and millimeter-wave domain since its potential to be utilized in the wireless communications and novel imaging systems.
Changming Liu +5 more
doaj +3 more sources
Results in Optics, 2023 Anisotropic Airy beams are presented as solutions to the parabolic wave equation. We obtain the cross polarization terms in the new beams using the elegant Mukunda–Simon–Sudarshan matrix substitution rule for transition from Helmholtz scalar wave optics ...
Sameen Ahmed Khan
doaj +2 more sources
A physics-informed Airy beam learning framework for blockage avoidance in sub-terahertz wireless networks [PDF]
Nature CommunicationsThe line-of-sight blockage is one of the main challenges in sub-terahertz wireless networks. Interestingly, the extended near-field range of sub-terahertz nodes gives rise to near-field wavefront shaping as a feasible remedy to tackle this issue ...
Haoze Chen +2 more
doaj +2 more sources
Propagation of Airy-related beams
Optics Express, 2010 New types of finite energy Airy beams are proposed. We consider two different types of beams, namely, beams that are obtained as blocked and exponentially attenuated versions of Airy functions Ai and Bi, and beams of finite width but having the Airy functions typical phase.
Margarida Facao
exaly +3 more sources
Airy beams on incoherent background [PDF]
Optics Letters, 2021 We present a class of diffraction-free partially coherent beams, each member of which comprises a finite-power, non-accelerating Airy bump residing on a statistically homogeneous, Gaussian-correlated background. We examine free-space propagation of soft apertured realizations of the proposed beams and show that their evolution is governed by two ...
Hajati, Morteza +2 more
openaire +3 more sources
Photonics, 2023 We investigate the interactions of in-phase Airy beams modulated by a fundamental Gaussian beam and fourth-order diffraction in Kerr nonlinear media. Directly numerical simulations show that normal (anomalous) fourth-order diffraction and an in-phase ...
Wenwen Zhao, Lijuan Ge, Ming Shen
doaj +1 more source
Reflection Characteristics of Airy Beams Impinging on Graphene-Substrate Surfaces
International Journal of Optics, 2022 In this work, we analytically and numerically investigate the reflection characteristics of the airy beams impinging on graphene-substrate surfaces. The explicit analytical expressions for the electric and magnetic field components of the airy beams ...
Fuping Wu +3 more
doaj +1 more source
Experimental investigation in Airy transform of Gaussian beams with optical vortex
Results in Physics, 2021 The Airy transform was first introduced for a Gaussian beam, and the output beam is an Airy beam. When the Gaussian beam is extended to the Gaussian beam with optical vortex, what kind of output beam will be achieved by executing the Airy transformation.
Yi-Qing Xu +5 more
doaj +1 more source
Dynamic propagation of an Airy beam in metasurface-enabled gradiently-aligned liquid crystals
Nanophotonics, 2023 Due to the unique self-acceleration, self-healing, and non-diffraction properties, Airy beams have been explored extensively and found applications in various fields.
Gao Meini +10 more
doaj +1 more source