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Optics Letters, 2019
We study the beam wander of a class of structured light beams, Hermite-Gaussian correlated Schell-model (HGCSM) beams, in theory and in experiment. It is found that modulating the coherence structure of a structured light beam can reduce the turbulence-induced beam wander, i.e., a HGCSM beam with larger mode orders or lower coherence experiences ...
Jiayi Yu +5 more
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We study the beam wander of a class of structured light beams, Hermite-Gaussian correlated Schell-model (HGCSM) beams, in theory and in experiment. It is found that modulating the coherence structure of a structured light beam can reduce the turbulence-induced beam wander, i.e., a HGCSM beam with larger mode orders or lower coherence experiences ...
Jiayi Yu +5 more
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The structural characteristics of inflatable beams
31st Aerospace Sciences Meeting, 1993Abstract The use of pneumatic architecture has historically been limited because of its poor performance in the areas of strength and rigidity. Yet the advent of new high strength fibers such as Allied Signal's “Spectra 1000” composed of ultra-high molecular weight polyethylene offer hope for the expanded use of inflatable structures.
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Beam shifts to reflected light beams and their axial structure
SPIE Proceedings, 2014The similarities and differences of spatial shifts to the centroids of reflected beams, and their (optical vortex) structure are discussed and reviewed. The differences between vortex-induced shifts to a beam centroid on reflection, and to the distribution of the vortices themselves is discussed. We conclude by discussing the shifts of a reflected beam
Dennis, Mark R., Götte, Jörg B.
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Beam-Plasma Structures at Propagation of Electron Beams in Plasma
Physica Scripta, 1998In the frame of the theory of weak turbulence the propagation of electron beams is considered. Using the smallness of quasilinear time transition from kinetic equations to gas-dynamic ones has been done. The obtained gas-dynamic equations are solved for one, two and N monoenergetic beams. It is shown that each beam generally propagates as a beam-plasma
Eduard P. Kontar, Valentin Melnik
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1991
We treat the dynamics of beams in a manner similar to that for rods. The sequence of analysis followed is: derive the governing differential equations, use spectral analysis to obtain general solutions, obtain an exact matrix formulation, obtain an approximate matrix formulation.
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We treat the dynamics of beams in a manner similar to that for rods. The sequence of analysis followed is: derive the governing differential equations, use spectral analysis to obtain general solutions, obtain an exact matrix formulation, obtain an approximate matrix formulation.
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Structured beams in laser refractography [PDF]
Journal of Communications Technology and Electronics, 2009 The main types of structured laser beams obtained using diffractive optical elements are presented. A new information and measuring technique—the laser refractography based on the application of structured radiation—is proposed for the quantitative diagnostics of inhomogeneous media.
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Structure related beam propagation
Optical and Quantum Electronics, 1999The general theory of a class of structure related (SR) non-orthogonal coordinate systems is introduced for the first time. Special cases of this type of coordinate system used separately or in combination can automatically follow the local geometry of many common optical waveguide designs, thereby facilitating the fast and accurate simulation of ...
P.C. Kendall +3 more
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Dealing with beam structure in PIXIE
SPIE Proceedings, 2016Measuring the B-mode polarization of the CMB radiation requires a detailed understanding of the projection of the detector onto the sky. We show how the combination of scan strategy and processing generates a cylindrical beam for the spectrum measurement.
D. J. Fixsen +5 more
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