Results 91 to 100 of about 235,976 (317)

FLIP: Transforming Consumer Projectors into Maskless Microscale Photopatterning Tools via Fresnel Lens Integration

open access: yesAdvanced Materials Technologies, EarlyView.
A low‐cost, maskless visible light photopatterning system has been developed by combining a consumer‐grade projector with a single Fresnel lens, generating the Fresnel Lens Integrated Projector (FLIP) system. FLIP enables flexible photopatterning of solid and gel films with features down to 30 µm and 135 µm, respectively.
Sridaran Rajagopal   +2 more
wiley   +1 more source

Relation of Continuous Chirality Measure to Spin and Orbital Polarization, and Chiroptical Properties in Solids

open access: yesAdvanced Optical Materials, EarlyView.
This work quantifies chirality through the continuous chirality measure (CCM). The CCM is correlated to a variety of properties: spin‐orbit field, orbital angular momentum, circular dichroism, absorption dissymmetry factor (gCD) and the circular photogalvanic effect.
Andrew Grieder, Shihao Tu, Yuan Ping
wiley   +1 more source

Distance antimagic labelings of Cartesian product of graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
Let be a graph of order n. Let be a bijection. The weight w(v) of a vertex v with respect to the labeling f is defined by where N(v) is the open neighborhood of v. The labeling f is called a distance antimagic labeling if for any two distinct vertices v1,
Nancy Jaseintha Cutinho   +2 more
doaj   +1 more source

On subgraphs of Cartesian product graphs

open access: yesDiscrete Mathematics, 2002
All graphs considered are finite undirected and simple ones. Such graphs which can be represented as nontrivial subgraphs of Cartesian product graphs are characterized. In general a graph \(G\) is prime with respect to a graph product \(*\) if it cannot be represented as a product of two nontrivial graphs, and \(G\) is called \(S\)-prime with respect ...
Alenka Lipovec   +2 more
openaire   +2 more sources

Hypo-q-Norms on a Cartesian Product of Normed Linear Spaces

open access: yes, 2017
In this paper we introduce the hypo-q-norms on a Cartesian product of normed linear spaces. A representation of these norms in terms of bounded linear functionals of norm less than one, the equivalence with the q-norms on a Cartesian product and some ...
Dragomir, Silvestru Sever
core  

Miniaturized Single‐Photon Level Computational Complex Field Imaging System via Meta‐Optics

open access: yesAdvanced Optical Materials, EarlyView.
8192 Hadamard mask patterns generated by the digital micromirror device (DMD) are projected onto a micro target sample via a metalens. The corresponding modulated intensity spectrum encoded with the spatial information of the target is then captured by a photomultiplier tube (PMT) at the Fourier plane to recover both the amplitude and phase images ...
Yuhao Wang   +10 more
wiley   +1 more source

The Seidel morphism of Cartesian products [PDF]

open access: yesAlgebraic & Geometric Topology, 2009
We prove that the Seidel morphism of $(M \times M', \omega \oplus \omega')$ is naturally related to the Seidel morphisms of $(M,\omega)$ and $(M',\omega')$, when these manifolds are monotone. We deduce that any homotopy class of loops of Hamiltonian diffeomorphisms of one component, with non-trivial image via Seidel's morphism, leads to an injection of
openaire   +4 more sources

Chiral Metasurfaces with Multidimensional Tunability for Optical Chiral States

open access: yesAdvanced Optical Materials, EarlyView.
A novel bilayer perovskite chiral metasurface enables tunable transitions between BIC‐associated vortex centres and circularly polarized states via rotational symmetry control. Breaking rotational symmetry and applying in situ rotation to the upper layer allows precise, omnidirectional tuning of C points in momentum space. This evolution forms a Möbius‐
Dayang Lin, Abbas Ghaffari, Qing Gu
wiley   +1 more source

Cloaking and Antennas: From Theoretical Paradigms to Next‐Generation Intelligent Systems

open access: yesAdvanced Optical Materials, EarlyView.
The inception of electromagnetic cloaking sparked an immediate question: Can antennas be made invisible? Two decades later, this review charts the intertwined progress of major cloaking strategies (from transformation optics to scattering cancellation), metasurface technology, and their application to antennas, revealing how AI‐enabled devices are ...
Helen Guo, Xun Li
wiley   +1 more source

Selection on X 1 + X 2 + ⋯ + X m via Cartesian product trees. [PDF]

open access: yesPeerJ Comput Sci, 2021
Kreitzberg P   +3 more
europepmc   +1 more source

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