Results 121 to 130 of about 610,284 (295)

Generation of Polarization Independent Ring-Airy Beam Based on Metasurface

Photonics
In this paper, we generated polarization-independent ring-Airy beams by designing metasurfaces that can realize modulations of both phase and amplitude. In numerical simulation, such metasurfaces are designed by placing subwavelength rectangular slits in
Zhenhua Li, Sen Wang, Xing Li, Lei Xu, Wenhui Dong, Hanping Liu, Huilan Liu, Kang Xu   +7 more
doaj   +1 more source

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

Advanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich, Paul Markus, Matthias Stöter, Bernhard Biersack, Rainer Schobert, Josef Breu, Georg Papastavrou   +6 more
wiley   +1 more source

Spin-polarized transport and Andreev reflection in semiconductor/superconductor hybrid structures

, 1999
We show that spin-polarized electron transmission across semiconductor/superconductor (Sm/S) hybrid structures depends sensitively on the degree of spin polarization as well as the strengths of potential and spin-flip scattering at the interface.
A. Kastalsky, A.F. Andreev, B.J. van Wees, C.J. Lambert, C.W.J. Beenakker, D. Hägele, D.D. Awschalom, D.P. DiVincenzo, E.A. de Andrada e Silva, E.L. Wolf, G. Deutscher, G. Prinz, G.E. Blonder, H. Munketa, H. Ohno, I. Žutić, I.I. Mazin, Igor Žutić, J. Fabian, J. Fabian, J. Fabian, J. Nitta, J.-X. Zhu, J.M. Kikkawa, J.M. Kikkawa, L.J. Sham, M. Johnson, M. Johnson, M.J.M. de Jong, N.A. Mortensen, P.G. de Gennes, P.M. Tedrow, P.R. Hammar, R.J. Soulen, Jr., S. Das Sarma, S. Datta, S. Datta, S. De Franceschi, S. Kashiwaya, S.K. Upadhyay, V.A. Vas’ko, Y.A. Bychkov   +41 more
core   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Vortex patterns and the critical rotational frequency in rotating dipolar Bose-Einstein condensates

, 2018
Based on the two-dimensional mean-field equations for pancake-shaped dipolar Bose-Einstein condensates in a rotating frame with both attractive and repulsive dipole-dipole interaction (DDI) as well as arbitrary polarization angle, we study the profiles ...
Bao, Weizhu, Cai, Yongyong, Pu, Han, Rosenkranz, Matthias, Yuan, Yongjun   +4 more
core   +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

Polarization Independent Ultra-wideband Meta-material Absorber Using Conductive Ink Resonator

Journal of Telecommunications and Information Technology
A wideband meta-material absorber with square and circular split rings that is based on a frequency selective surface of conductive ink is proposed. With over 90% absorptivity, the structure demonstrates broad absorption for the C, X, KU and K bands, as
Bharti Kumari, Abhinav Kumar, Prashant Kumar, Mintu Singh   +3 more
doaj   +1 more source

CMB Anisotropies: Total Angular Momentum Method

, 1997
A total angular momentum representation simplifies the radiation transport problem for temperature and polarization anisotropy in the CMB. Scattering terms couple only the quadrupole moments of the distributions and each moment corresponds directly to ...
A. G. Polnarev, A. Kosowsky, C. J. Hogan, E. Newman, H. Kodama, J. D. Jackson, J. J. Sakurai, J. M. Bardeen, J. Negroponte, J. R. Bond, K. S. Thorne, K. Tomita, L. F. Abbott, M. Kamionkowski, M. M. Basko, M. Zaldarriaga, M. Zaldarriaga, Martin White, N. Kaiser, N. Turok, P. J. E. Peebles, R. Battye, R. Durrer, R. G. Crittenden, R. G. Crittenden, R. K. Sachs, S. Chandrasekhar, S. Veeraraghavan, U. Seljak, U. Seljak, W. Hu, W. Hu, W. Hu, Wayne Hu   +33 more
core   +1 more source

Band Alignment in In‐Oxo Metal Porphyrin SURMOF Heterojunctions

Advanced Functional Materials, EarlyView.
Porphyrin core metalation in indium‑oxo SURMOFs enables systematic tuning of band edge positions without altering the crystal structure. First‑principles calculations reveal type‑I and type‑II heterostructures as well as multi‑junction energy cascades, establishing a modular strategy for exciton funneling and charge separation in optoelectronic ...
Puja Singhvi, Nina Vankova, Thomas Heine
wiley   +1 more source

Vectorial dissipative solitons in vertical-cavity surface-emitting Lasers with delays

, 2014
We show that the nonlinear polarization dynamics of a vertical-cavity surface-emitting laser placed into an external cavity leads to the formation of temporal vectorial dissipative solitons. These solitons arise as cycles in the polarization orientation,
A Perez-Serrano, C Lecaplain, CA Klausmeier, DY Tang, F Leo, F Marino, FT Arecchi, G Giacomelli, G Nicolis, H Zhang, HU Bödeker, J Javaloyes, J Javaloyes, J Javaloyes, J. Javaloyes, JK Jang, JU Kang, K Choquette, KD Choquette, L Lugiato, M Marconi, M San Miguel, M Tlidi, M Virte, M. Giudici, M. Marconi, N Akhmediev, N Akhmediev, NN Rosanov, O Descalzi, P Coullet, P Genevet, P Grelu, P Grelu, QL Williams, S Barland, S Chouli, S Fauve, S. Balle, S. Barland, ST Cundiff, T Ackemann, T Elsass, WJ Firth, YV Kartashov   +44 more
core   +3 more sources