Results 101 to 110 of about 40,586 (284)

Interference Generation of a Reverse Energy Flow with Varying Orbital and Spin Angular Momentum Density

Photonics
This paper presents a novel method for generating and shaping reverse energy flow through the interference of light fields from a minimal number of point light sources.
Andrey V. Ustinov, Alexey P. Porfirev, Svetlana N. Khonina   +2 more
doaj   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

From black holes to flux throats: polarization can resolve the singularity

, 2015
Supersymmetry-breaking is a key ingredient for string theory models to be phenomenologically viable. We review the strong analogy in the physics and the methods used for describing non-supersymmetric flux vacua and non-supersymmetric black holes in ...
Cohen-Maldonado, Diego, Diaz, Juan, Van Riet, Thomas, Vercnocke, Bert   +3 more
core   +2 more sources

Generation of V-point polarization singularity using single phase encoding with a spatial light modulator. [PDF]

Sci Rep, 2023
Kumar P, Rao AS, Omatsu T.
europepmc   +1 more source

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

Advanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu, Ritam Chakraborty, Biao Yang, Dennis Meier, Joachim Reichert, Svetlana Klyatskaya, Mario Ruben, Shobhana Narasimhan, Johannes V. Barth, Anthoula C. Papageorgiou   +9 more
wiley   +1 more source

Sculpturing sound fields with the real-space structural topology of acoustic cavities

New Journal of Physics
Artificial structures have been widely employed to manipulate sound fields to realize intriguing acoustic phenomena and functionalities. The development of this field requires a thorough understanding of how sound fields depend on the various properties ...
Qing Tong, Shubo Wang
doaj   +1 more source

Observation of a van Hove Singularity in $Bi_{2}Sr_{2}Ca_{1}Cu_{2}O_{8+x}$ with Angle Resolved Photoemission

, 1994
We have performed high energy resolution angle-resolved photoemission studies of the normal state band structure of oxygen overdoped $Bi_{2}Sr_{2}Ca_{1}Cu_{2}O_{8+x}$.
Alméras, P., Berger, H., Kelley, R. J., Ma, Jian, Margaritondo, G., Onellion, M., Quitmann, C.   +6 more
core   +1 more source

Polarization singularities in superposition of vector beams

Optics Express, 2013
We present a systematic study of the superposition of two vector Laguerre-Gaussian (LG) beams. Propagation depended field distribution obtained from the superposition of two vector LG beams has many interesting features of intensity and polarization.
Sunil, Vyas, Yuichi, Kozawa, Shunichi, Sato   +2 more
openaire   +2 more sources

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

Advanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz, Jonas De Breuck, Sahar Salehi, Meike N. Leiske   +3 more
wiley   +1 more source

The Multiplicity Polar Theorem and isolated singularities

Journal of Algebraic Geometry, 2008
We show how the Multiplicity Polar Theorem can be used to calculate invariants which describe an “isolated singularity”. Examples include the defect of a function, which is related to the Euler obstruction, the index of a differential form, the dimension of the space of vanishing cycles of a sheaf of D-modules M M relative to a ...
openaire   +3 more sources