Results 21 to 30 of about 39,618 (259)
Experimental Synthesis and Demonstration of the Twisted Laguerre–Gaussian Schell-Mode Beam
Photonics, 2023 The twisted Laguerre–Gaussian Schell-model (TLGSM) beam is a novel type of partially coherent beam embedded with both the second-order twist phase and the classical vortex phase.
Yuning Xia +5 more
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Twist Phase Matching in Two-Dimensional Materials
Physical Review Letters, 2023 Optical phase matching involves establishing a proper phase relationship between the fundamental excitation and generated waves to enable efficient optical parametric processes. It is typically achieved through birefringence or periodic polarization. Here, we report that the interlayer twist angle in two-dimensional (2D) materials creates a nonlinear ...
Hong, Hao +10 more
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Research Progress on the Twisted Partially Coherent Beams
Nantong Daxue xuebao. Ziran kexue ban, 2020 Under the action of twist phase, partially coherent beams display their unique advantages in many applications fields, such as beam shaping, particle trapping, optical imaging, free-space communications, and so on.
WANG Haiyun; LIU Lin; CAI Yangjian
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Photonics, 2022 Analytical expressions for the cross-spectral density matrix of a partially coherent twisted Laguerre-Gaussian pulsed (PCTLGP) beam in anisotropic atmospheric turbulence are derived based on the extended Huygens–Fresnel principle.
Ying Xu, Yonggen Xu, Tiejun Wang
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κ-Deformed Phase Space, Hopf Algebroid and Twisting [PDF]
Symmetry, Integrability and Geometry: Methods and Applications, 2014 Hopf algebroid structures on the Weyl algebra (phase space) are presented. We define the coproduct for the Weyl generators from Leibniz rule. The codomain of the coproduct is modified in order to obtain an algebra structure. We use the dual base to construct the target map and antipode.
Jurić, Tajron +2 more
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Geometric Phase in Twisted Topological Complementary Pair
Advanced Science, 2023 AbstractGeometric phase enabled by spin‐orbit coupling has attracted enormous interest in optics over the past few decades. However, it is only applicable to circularly‐polarized light and encounters substantial challenges when applied to wave fields lacking the intrinsic spin degree of freedom. Here, a new paradigm is presented for achieving geometric
Kun Zhang +10 more
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Quantifying phases in homogenous twisted birefringent medium [PDF]
Applied Optics, 2013 7 pages.
Banerjee, Dipti, Banerjee, Srutarshi
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Poling-free spinning process of manufacturing piezoelectric yarns for textile applications
Materials & Design, 2019 This report describes a new twist-spinning process for the manufacture of piezoelectric yarn without the need for additional poling processes. Poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) nanofibers were first electrospun and organized into a ...
Sarang Park +5 more
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Optical twists in phase and amplitude
Optics Express, 2011 Light beams with helical phase profile correspond to photons having orbital angular momentum (OAM). A Laguerre-Gaussian (LG) beam is an example where its helical phase sets a phase-singularity at the optical axis and forms a ring-shaped transverse amplitude profile.
Daria, Vincent +2 more
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Crystals, 2020 Nematic twist-bend phases (NTB) are new types of nematic liquid crystalline phases with attractive properties for future electro-optic applications. However, most of these states are monotropic or are stable only in a narrow high temperature range.
Abir Aouini +7 more
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