Results 21 to 30 of about 230,654 (298)
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
openaire +3 more sources
Quantifying phases in homogenous twisted birefringent medium [PDF]
Applied Optics, 2013 7 pages.
Banerjee, Dipti, Banerjee, Srutarshi
openaire +3 more sources
Applied Sciences, 2019 Ghost imaging (GI) is an indirect imaging approach that can retrieve an object’s image even in a harsh environment through measuring the fourth-order correlation function (FOCF) between the signal and idle optical paths.
Yonglei Liu +5 more
doaj +1 more source
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
doaj +1 more source
Giant-block twist grain boundary smectic phases [PDF]
Proceedings of the National Academy of Sciences, 2005 Study of a diverse set of chiral smectic materials, each of which has twist grain boundary (TGB) phases over a broad temperature range and exhibits grid patterns in the Grandjean textures of the TGB helix, shows that these features arise from a common structure: “giant” smectic blocks of planar layers of thicknesslb> 200 nm terminated by GBs that ...
J, Fernsler +12 more
openaire +2 more sources
Correlated insulating phases in the twisted bilayer graphene* [PDF]
Chinese Physics B, 2021 We review analytical and numerical studies of correlated insulating states in twisted bilayer graphene, focusing on real-space lattice models constructions and their unbiased quantum many-body solutions. We show that by constructing localized Wannier states for the narrow bands, the projected Coulomb interactions can be approximated by interactions of ...
Da Liao, Yuan +3 more
openaire +2 more sources
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
doaj +1 more source
Order and Frustration in Chiral Liquid Crystals [PDF]
, 2000 This paper reviews the complex ordered structures induced by chirality in liquid crystals. In general, chirality favors a twist in the orientation of liquid-crystal molecules. In some cases, as in the cholesteric phase, this favored twist can be achieved
+37 more
core +1 more source
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
openaire +4 more sources
Fixed twist dynamics of SO(3) gauge theory [PDF]
, 2006 We perform a throughout study of 3+1 dim. SO(3) LGT for any fixed-twist background. We concentrate in particular on the physically significant trivial and 1-twist sectors.
A. Barresi +35 more
core +3 more sources