Results 51 to 60 of about 167,695 (329)

The momentum and photon energy dependence of the circular dichroic photoemission in the bulk Rashba semiconductors BiTeX (X = I, Br, Cl) [PDF]

, 2014
Bulk Rashba systems BiTeX (X = I, Br, Cl) are emerging as important candidates for developing spintronics devices, because of the coexistence of spin-split bulk and surface states, along with the ambipolar character of the surface charge carriers.
Autés, G., Berger, H., Bondino, F., Bugnon, Ph., Cilento, F., Crepaldi, A., Grioni, M., Johannsen, J. C., Magnano, E., Magrez, A., Moreschini, L., Parmigiani, F., Tournier-Colletta, C., Vobornik, I., Yazyev, O. V., Zacchigna, M., Zonno, M.   +16 more
core   +2 more sources

Double Helical Plasmonic Antennas

Advanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin, Luka Zurak, Krzysztof Maćkosz, Lorenz Löffler, Victor Deinhart, Ivo Utke, Thorsten Feichtner, Katja Höflich   +7 more
wiley   +1 more source

Realizing electronically reconfigurable intrinsic chirality: from no absorption to maximal absorption of any desirable spin

Nanophotonics
Circular dichroism – the spin-selective absorption of light – finds diverse applications in medicine, antennas and microwave devices. In this work, we propose and experimentally demonstrate an ultrathin electronically reconfigurable chiral metasurface ...
Khan Muhammad Ismail, Khan Tayyab Ali, Abdelbaky Moustafa, Wong Alex M. H.   +3 more
doaj   +1 more source

Second harmonic Circular Dichroism in Achiral Nanostructures [PDF]

EPJ Web of Conferences
We theoretically show that under circularly polarized plane wave or vortex beam illumination, the second-harmonic circular dichroism is possible even if the nanostructure is achiral.
Frizyuk Kristina, Nikitina Anastasia
doaj   +1 more source

Band structure and atomic sum rules for x-ray dichroism

, 2000
Corrections to the atomic orbital sum rule for circular magnetic x-ray dichroism in solids are derived using orthonormal LMTOs as a single-particle basis for electron band states.Comment: 7 pages, no ...
Andersen, O. K., Benoist, R., Carra, P.
core   +2 more sources

Planar metamaterial with transmission and reflection that depend on the direction of incidence [PDF]

, 2008
We report that normal incidence reflection and transmission of circularly polarized electromagnetic waves from and through planar split-ring microwave metamaterials with chiral symmetry breaking depends on the incidence direction and handedness of ...
Fedotov, V.A., Plum, E., Zheludev, N.I.
core   +2 more sources

Roll‐to‐Roll Mechanical Exfoliation for Large‐Area van der Waals Films with Preserved Crystallographic Alignment

Advanced Functional Materials, EarlyView.
A roll‐to‐roll exfoliation method is demonstrated that preserves the crystallographic alignment of anisotropic 2D materials over large areas, enabling scalable fabrication of directional electronic and optoelectronic devices. Abstract Anisotropic 2D materials such as black phosphorus (BP), GeS or CrSBr, exhibit direction‐dependent optical and ...
Esteban Zamora‐Amo, Francisco Fernandez‐Canizares, Yigit Sozen, Thomas Pucher, Pedro L Alcázar Ruano, Carmen Munuera, Ryo Ishikawa, Naoya Shibata, María Varela, Der‐Yuh Lin, Bing Wu, Jorge Quereda, Zdenek Sofer, Gabriel Sánchez‐Santolino, Andres Castellanos‐Gomez   +14 more
wiley   +1 more source

Free Radical Generation in Far-UV Synchrotron Radiation Circular Dichroism Assays—Protein and Buffer Composition Contribution [PDF]

, 2021
Paolo Ruzza, Claudia Honisch, Rohanah Hussain, Giuliano Siligardi   +3 more
openalex   +1 more source

Circular Dichroism of Single Particles

, 2017
Circular dichroism (CD), induced by chirality, is an important tool for manipulating light or for characterizing morphology of molecules, proteins, crystals and nano-structures. CD is manifested over a wide size-range, from molecules to crystals or large
Barnea, A. Ronny, Ben-Moshe, Assaf, Cheshnovsky, Ori, Markovich, Gil, Vestler, Daniel, Vinegrad, Eitam   +5 more
core   +1 more source

Elliptical dichroism: operating principle of planar chiral metamaterials [PDF]

, 2009
We employ a homogenization technique based on the Lorentz electronic theory to show that planar chiral structures (PCSs) can be described by an effective dielectric tensor similar to that of biaxial elliptically dichroic crystals. Such a crystal is shown
Andrey V. Novitsky, Borzdov, Decker, Drezet, Fedotov, Fedotov, Fedotov, Kuwata-Gonokami, Lyons, Papakostas, Plum, Plum, Plum, Plum, Plum, Reichelt, Rockstuhl, Sergei V. Zhukovsky, Shalaev, Shalaev, Spielman, Vladimir M. Galynsky, Zhukovsky   +22 more
core   +3 more sources