Results 71 to 80 of about 256,534 (295)

Linear and Circular Polarization in the Diffuse Interstellar Medium [PDF]

Symposium - International Astronomical Union, 1989
A brief introduction is provided to the origin of interstellar polarization, grain model calculations, and alignment. The characteristics of the observed linear and circular continuum polarization are described, with an emphasis on various constraints that might be placed on the nature of the polarizing grains and what additional observations would be ...
openaire   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source

Four-zone reflective polarization conversion plate

, 2014
The work was partially funded by the Russian Foundation Basic Research grants ## 13-07-97008, 14-07-31092, and 14-07-97039, the Russian Federation Presidential grant for state support of young Russian scientists with Candidate's degree MK-4816.2014.2 ...
L. O'Faolain, Stafeev, S.S., Kotlyar, V.V., A. G. Nalimov, V. V. Kotlyar, S. S. Stafeev, Nalimov, A.G., O'Faolain, L.   +7 more
core   +1 more source

A meanderlinebased polarizer technique for the implementation of a fullpolarization tunable of VICTS antennas

四川大学学报. 自然科学版, 2020
A new method based on multilayer meanderline structures to implement the expected polarization of VICTS antennas was introduced. A cascade of two meanderline polarizers with a unified structure was employed for the first time, which could achieve the ...
WEN Zhong, YUAN Long, GUO Qing-Gong
doaj  

Exploring Curvature Effects in Direct‐Written 3D Curved Hollow Magnetic Nanoshells

Advanced Functional Materials, EarlyView.
Fabricated by a hybrid FEBID/CVD method, 3D PtC/Co3Fe core–shell heterostructures with engineered curvature and shell thickness exhibit complex reversal modes with axially symmetric N'eel‐type domain walls. XMCD‐PEEM combined with full‐scale micromagnetic simulations reveal how curvature and thickness govern the domain wall energy landscape and shape ...
Oleksii M. Volkov, Fabrizio Porrati, Florian Kronast, Riccardo Hertel, Pavlo Makushko, Olha Bezsmertna, Alexander Kuprava, Mohamad‐Assaad Mawass, Sven Barth, Michael Huth, Denys Makarov   +10 more
wiley   +1 more source

Highly efficient polarization converter with wide angular stability

Scientific Reports
This paper presents a multi-band polarization converter using spoof surface plasmon polaritons (SSPP), addressing the growing demand for efficient polarization control in modern communication systems, radar, and sensing technologies.
Changiz Ghobadi, Mohsen Karamirad, Javad Nourinia   +2 more
doaj   +1 more source

Microenvironmental Reprogramming by 3D Anisotropic Cardiac Extracellular Matrix Induces Nuclear Remodeling and Epigenetic Maturation of Chemically Induced Cardiomyocytes

Advanced Functional Materials, EarlyView.
A 3D anisotropic hydrogel derived from heart extracellular matrix guides cytoskeletal alignment and nuclear remodeling in reprogrammed cardiomyocyte‐like cells. This study reveals how matrix alignment modulates nuclear envelope dynamics and chromatin state, triggering transcriptional and functional maturation.
Seung Ju Seo, Mi Jeong Lee, Hyun Wook Kang, Seonhee Byeon, Soo‐Kyoung Choi, Nakwon Choi, Seung‐Woo Cho, Yoonhee Jin   +7 more
wiley   +1 more source

The optical singularities of birefringent dichroic chiral crystals

, 2003
Using a new formalism involving projection from the sphere of directions to the stereographic plane, and associated complex variables, explicit formulae are obtained for the two refractive indices and polarizations in optically anisotropic crystals that ...
Dennis, MR, Berry, MV, M. V. Berry, Dennis, M.R., M. R. Dennis, Berry, M.V., Berry, M. V., Dennis, M. R.; id_orcid   +7 more
core   +1 more source

An inverse Faraday effect generated by linearly polarized light through a plasmonic nano-antenna

Nanophotonics, 2023
The inverse Faraday effect (IFE) generates magnetic fields by optical excitation only. Since its discovery in the 60 s, it was believed that only circular polarizations could magnetize matter by this magneto-optical phenomenon.
Yang Xingyu, Mou Ye, Zapata Romeo, Reynier Benoît, Gallas Bruno, Mivelle Mathieu   +5 more
doaj   +1 more source

Stretched polymers for X-ray linear and circular polarization

Journal of Synchrotron Radiation, 1998
X-ray linear dichroism at the iodine K-edge of Polaroid H-sheet is explored with a view to using stretched polymers for X-ray linear-polarization analysis. The potential use of such materials as phase plates for generating elliptically polarized beams is also considered.
openaire   +2 more sources