Results 71 to 80 of about 21,857 (278)

3D‐Printed Serial Snap‐Through Architectures for Programmable Mechanical Response

Advanced Engineering Materials, EarlyView.
A serial snap‐through architecture is realized using compact 3D‐printed von Mises truss units arranged in a staged cascade. Their geometry and boundary conditions program multistage mechanical responses with plateaux and re‐hardening regimes. An inverted‐compliance model predicts these behaviors and enables analytical design of programmable force ...
Filipe A. Santos
wiley   +1 more source

Bulk photonic metamaterial with hyperbolic dispersion

, 2008
In this work, we demonstrate a self-standing bulk three-dimensional metamaterial based on the network of silver nanowires in an alumina membrane. This constitutes an anisotropic effective medium with hyperbolic dispersion, which can be used in sub ...
E. E. Narimanov, G. Zhu, H. Li, Lynch D. W., M. A. Noginov, T. Tumkur, Yu. A. Barnakov   +6 more
core   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Circular Dichroism Reflectance Anisotropy of Chiral Atomically Thin Films

Chemosensors
Recently, a technical modification of a Reflectance Anisotropy Spectroscopy (RAS) spectrometer has been proposed to investigate the circular dichroism (CD) of samples instead of the normally studied linear dichroism. CD-RAS measures the anisotropy of the
Ilaria Tomei, Filippo Pierucci, Beatrice Bonanni, Anna Sgarlata, Massimo Fanfoni, Seong-Jun Yang, Cheol-Joo Kim, Claudio Goletti   +7 more
doaj   +1 more source

Probing hyperbolic polaritons using infrared attenuated total reflectance micro-spectroscopy

, 2018
Hyperbolic polariton modes are highly appealing for a broad range of applications in nanophotonics, including surfaced enhanced sensing, sub-diffractional imaging and reconfigurable metasurfaces.
Caldwell, Joshua D., Edgar, James H., Folland, Thomas G., Liu, Song, Matson, Joseph R., Maß, Tobias W. W., Nolen, J. Ryan, Taniguchi, Takashi, Taubner, Thomas, Watanabe, Kenji   +9 more
core   +1 more source

Optical anisotropy of Ge(001) [PDF]

, 1993
The surface induced optical anisotropy in the electronic structure of clean Ge(001) 2×1 was studied with an ellipsometer at normal incidence. The change in the reflection difference between light polarized parallel and perpendicular to the dimer bond at ...
Boeij, P.L. de, Silfhout, A. van, Wentink, D.J., Wormeester, H.   +3 more
core   +2 more sources

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source

Multi-Spectral Point Cloud Constructed with Advanced UAV Technique for Anisotropic Reflectance Analysis of Maize Leaves

Remote Sensing
Reflectance anisotropy in remote sensing images can complicate the interpretation of spectral signature, and extracting precise structural information under these pixels is a promising approach.
Kaiyi Bi, Yifang Niu, Hao Yang, Zheng Niu, Yishuo Hao, Li Wang   +5 more
doaj   +1 more source

Ultrasensitive and fast single wavelength plasmonic hydrogen sensing with anisotropic nanostructured Pd films

, 2018
Anisotropic nanostructured porous Pd films are fabricated using oblique angle deposition in vacuum on a glass substrate. They display a dichroic response, due to localised surface plasmon resonances (LSPR) within the nanoparticles forming the film ...
Borensztein, Yves, Watkins, William L.
core   +2 more sources

Propagation and filtering of elastic and electromagnetic waves in piezoelectric composite structures [PDF]

, 2016
In this article we discuss the modelling of elastic and electromagnetic wave propagation through one- and two-dimensional structured piezoelectric solids. Dispersion and the effect of piezoelectricity on the group velocity and positions of stop bands are
Camposaragna, Michele, Movchan, Alexander B., Movchan, Natalia V., Tallarico, Domenico   +3 more
core   +2 more sources