Results 131 to 140 of about 1,192,546 (345)

Terahertz Chiral Metamaterials Enabling Broadband Polarization Conversion Using Polarization Guiding Effect

Advanced Materials Technologies, EarlyView.
A broadband terahertz polarization rotator consisting of twistingly stacked silicon–air metagratings is designed based on the polarization guiding effect and experimentally shown to achieve 90° linear polarization rotation for both TE and TM incidences.
Yun‐Seok Choi, Tae Gwan Park, Antoinette J. Taylor, Hou‐Tong Chen, Abul K. Azad   +4 more
wiley   +1 more source

Existence of the Abrikosov vortex state in two-dimensional type-II superconductors without pinning

, 2002
Theory alternative to the vortex lattice melting theories is advertised. The vortex lattice melting theories are science fiction cond-mat/9811051 because the Abrikosov state is not the vortex lattice with crystalline long-range order.
A. Houghton, A. V. Nikulov, A. Yazdani, A.V. Andreev, A.V. Nikulov, D.S. Fisher, E. Brezin, G. Blatter, G. Eilenberger, G.G. Sergeeva, G.J. Ruggeri, G.J. Ruggeri, H.H. Lee, J.A. O'Neill, J.A. O'Neill, K. Maki, K. Maki, M. Suenaga, M.A. Moore, M.A. Moore, N.K. Wilkin, P. Berghuis, P. Berghuis, P. Koorevaar, P.A. Lee, P.G. De Gennes, R. Ikeda, R. Ikeda, S. Hikami, Shinobu Hikami, V.A. Marchenko, V.A. Marchenko, V.A. Marchenko, V.A. Marchenko, W.H. Kleiner, W.K. Kwok, Zlatko Tesanovic', Zlatko Tesanovic', Zlatko Tesanovic'   +38 more
core   +1 more source

Engineering Thermal Emission with Enhanced Emissivity and Quality Factor Using Bound States in the Continuum and Electromagnetically Induced Absorption

Advanced Optical Materials, EarlyView.
A metal‐based thermal metasurface supporting bound states in the continuum is demonstrated and experimentally shown to achieve a record‐high quality factor of 202 and high emissivity of 0.82. The design offers thermally stable, narrowband mid‐infrared emission, making it ideal for high‐precision gas sensing applications.
Guodong Zhu, Ikjun Hong, Kewei Li, Theodore Anyika, Maxwell T. Ugwu, J. Ryan Nolen, Mingze He, Joshua D. Caldwell, Justus C. Ndukaife   +8 more
wiley   +1 more source

Exotic holomorphic Engel structures on C4

, 2017
A holomorphic Engel structure determines a flag of distributions $\mathcal{W}\subset \mathcal{D}\subset \mathcal{E}$. We construct examples of Engel structures on $\mathbf{C}^4$ such that each of these distributions is hyperbolic in the sense that it has
Coelho, Rui, Pia, Nicola
core   +1 more source

Could Edible Photonic Structures Be an Alternative to Traditional Food Coloring?

Advanced Optical Materials, EarlyView.
What if color in food came from photonic structures? This perspective introduces structural color as a potential next‐generation solution to replace conventional colorants in foods. It discusses edible photonic materials, their unique benefits, and the technological, safety, and consumer acceptance challenges that must be addressed to bring this ...
Miguel A. Cerqueira, Nicolas Vogel, Martin Lopez‐Garcia, Krassimir P. Velikov, Silvia Vignolini, Lorenzo M. Pastrana   +5 more
wiley   +1 more source

Probing Ultrafast Coherent Bandgap Modulation in Monolayer WSe2 by Nonlinear Optics

Advanced Optical Materials, EarlyView.
This work sheds light on how resonant nonlinear optics blursthe line between perturbative and non‐perturbative nonlinear optics. Measured deviationsfrom the quadratic second‐harmonic scaling near the excitonic resonance arisefrom optical Stark and Bloch‐Siegert shifts. The experimental results arefurther underpinned by analytical and numerical analysis
Sebastian Klimmer, Thomas Lettau, Laura Valencia Molina, Daniil Kartashov, Ulf Peschel, Jan Wilhelm, Dragomir Neshev, Giancarlo Soavi   +7 more
wiley   +1 more source

Expression of the C4 Me1 Gene from Flaveria bidentis Requires an Interaction between 5[prime] and 3[prime] Sequences. [PDF]

, 1997
Jerry S. Marshall, John D. Stubbs, Julie A. Chitty, V.P. Surin, William C. Taylor   +4 more
openalex   +1 more source

Stable Imitation of Multigait and Bipedal Motions for Quadrupedal Robots Over Uneven Terrains

Advanced Robotics Research, EarlyView.
How are quadrupedal robots empowered to execute complex navigation tasks, including multigait and bipedal motions? Challenges in stability and real‐world adaptation persist, especially with uneven terrains and disturbances. This article presents an imitation learning framework that enhances adaptability and robustness by incorporating long short‐term ...
Erdong Xiao, Yinzhao Dong, Ji Ma, Peng Lu   +3 more
wiley   +1 more source

Aqueous alkali metal hydroxide insoluble cellulose ether membrane [PDF]

, 1969
A membrane that is insoluble in an aqueous alkali metal hydroxide medium is described. The membrane is a resin which is a water-soluble C2-C4 hydroxyalkyl cellulose ether polymer and an insolubilizing agent for controlled water sorption, a dialytic and ...
Hoyt, H. E., Pfluger, H. L.
core   +1 more source

A Self‐Healing Permanent Magnet Putty for Soft Robot Skins With Force Sensing and Functional Recovery

Advanced Robotics Research, EarlyView.
Permanent magnet putty (PMP) integrates high‐coercivity NdFeB particles with a dynamic polyborosiloxane–Ecoflex matrix, achieving rapid self‐healing (90% mechanical recovery in 10 s) and magnetic recovery within 20 min. With twice the sensitivity of commercial putties, PMP enables precise 5–30 N force detection and discrimination between pressing and ...
Ruotong Zhao, Mitsuhiro Kamezaki, Ryosuke Dobashi, Yuhiro Iwamoto, Yasushi Ido, Yoshihiro Kawahara   +5 more
wiley   +1 more source