Results 21 to 30 of about 40,963 (216)

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

Advanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley   +1 more source

Emission spectra and intrinsic optical bistability in a two-level medium

, 2010
Scattering of resonant radiation in a dense two-level medium is studied theoretically with account for local field effects and renormalization of the resonance frequency.
A. Kuditcher, A. Nick Vamivakas, C.M. Bowden, C.M. Bowden, D. V. Kuznetsov, D.R. Gamelin, D.V. Novitsky, E.B. Flagg, F. Ciccarello, F. Ciccarello, F.A. Hopf, J.M. Ward, K.D. Zhu, L. Li, L. Li, M. Fleischhauer, M. G. Gladush, M. Gladush, M. Gladush, M.A. Noginov, M.E. Crenshaw, M.G. Benedict, M.P. Hehlen, M.P. Hehlen, M.P. Hehlen, O. Astafiev, O. Guillot-Noël, O. Guillot-Noël, O. Guillot-Noël, P. de Vries, S. Ates, S.M. Redmond, S.R. Lüthi, Vl. K. Roerich, Y. Ben-Aryeh, Y. Ben-Aryeh, Y. Gu   +36 more
core   +1 more source

Integration of a resonant tunneling diode and an optical communications laser [PDF]

, 2006
We report on the first integration of a resonant tunneling diode and an optical communications laser operating at around 1.5 /spl μm.
Farmer, C.D., Hopkinson, M., Ironside, C.N., Slight, T.J., Stanley, C.R.   +4 more
core   +1 more source

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

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

Lateral current density fronts in asymmetric double-barrier resonant-tunneling structures

, 2003
We present a theoretical analysis and numerical simulations of lateral current density fronts in bistable resonant-tunneling diodes with Z-shaped current-voltage characteristics.
Alekseev A., Cheianov V., Eckehard Schöll, Feiginov M. N., Goldmann V. J., Inkoferer J., Meixner M., Meixner M., Nechaev A. M., Pavel Rodin, Schöll E.   +10 more
core   +1 more source

Bistable Spin Currents from Quantum Dots Embedded in a Microcavity [PDF]

, 2006
We examine the spin current generated by quantum dots embedded in an optical microcavity. The dots are connected to leads, which allow electrons to tunnel into and out of the dot.
Djuric, Ivana, Search, Chris P.
core   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Bistable nanoelectromechanical devices

Applied Physics Letters, 2004
A combined transmission electron microscopy-scanning tunneling microscopy (TEM-STM) technique has been used to investigate the force interactions of silicon and germanium nanowires with gold electrodes. The I(V) data obtained typically show linear behavior between the gold electrode and silicon nanowires at all contact points, whereas the linearity of ...
Ziegler, Kirk J., Lyons, Daniel M., Holmes, Justin D., Erts, Donats, Polyakov, Boris, Olin, H., Svensson, K., Olsson, E.   +7 more
openaire   +3 more sources

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

Advanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang, Max Gießübel, Pankaj Dharpure, Andrea Albert, Vira Niestierkina, Paul Mulvaney, Mukundan Thelakkat, Jürgen Köhler   +7 more
wiley   +1 more source