Results 71 to 80 of about 63,217 (287)

Discrete Euler–Bernoulli beam lattices with beyond nearest connections

New Journal of Physics
The propagation of elastic waves on discrete periodic Euler–Bernoulli mass-beam lattices is characterised by the competition between coupled translational and rotational degrees-of-freedom at the mass-beam junctions.
R G Edge, E Paul, K H Madine, D J Colquitt, T A Starkey, G J Chaplain   +5 more
doaj   +1 more source

Sub-diffraction thin-film sensing with planar terahertz metamaterials

, 2011
Planar metamaterials have been recently proposed for thin dielectric film sensing in the terahertz frequency range. Although the thickness of the dielectric film can be very small compared with the wavelength, the required area of sensed material is ...
Abbott, Derek, Bhaskaran, Madhu, Fumeaux, Christophe, Lin, Hungyen, Serita, Kazunori, Shah, Charan M., Sriram, Sharath, Tonouchi, Masayoshi, Withayachumnankul, Withawat   +8 more
core   +1 more source

Thermal hyperbolic metamaterials

Optics Express, 2013
1. We correct several formating mistakes and improve the figure quality 2.
Guo, Yu, Jacob, Zubin
openaire   +3 more sources

Nanoscale Mapping of Plasmonic Charge Transport in Nano‐Resonators Based on Resistive Switching Materials

Advanced Functional Materials, EarlyView.
In this strategy, a conductive nano‐probe is employed to induce nanoscale phase transitions and map the nanoscale conductivity and trap density of GST films. By utilizing the contrasting properties of phase‐change states, nano‐resonators are fabricated that exhibit plasmonic conduction and dramatically different transport characteristics.
Sunwoo Bang, Seunghyo Park, Shashank Shekhar, Yuhyeon Oh, Seunghun Hong   +4 more
wiley   +1 more source

Non-Markovian exceptional points by interpolating quantum channels

npj Quantum Information
Exceptional points (EPs) occur in non-Hermitian systems where eigenvalues and eigenvectors coalesce. In open quantum systems, EPs are typically studied via non-Hermitian effective Hamiltonians or Liouvillians, but these omit the full generality of ...
Wai Chun Wong, Bei Zeng, Jensen Li
doaj   +1 more source

Ultrafast all-optical switching via coherent modulation of metamaterial absorption

, 2014
We report on the demonstration of a femtosecond all-optical modulator providing, without nonlinearity and therefore at arbitrarily low intensity, ultrafast light-by-light control.
Din Ping Tsai, Jun-Yu Ou, Kevin F. MacDonald, Ming Lun Tseng, Nikolay I. Zheludev, Trebino R., Xu Fang   +6 more
core   +1 more source

Circular‐Polarization‐Sensitive Organic Photodetectors with a Chiral Nanopatterned Electrode Inverse‐Designed by Genetic Algorithm

Advanced Functional Materials, EarlyView.
A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park, Jewoong Lee, In‐Suk Choi, Changsoon Kim   +3 more
wiley   +1 more source

Optical Field Enhancement in Nanoscale Slot Waveguides of Hyperbolic Metamaterials

, 2012
Nanoscale slot waveguides of hyperbolic metamaterials are proposed and demonstrated for achieving large optical field enhancement. The dependence of the enhanced electric field within the air slot on waveguide mode coupling and permittivity tensors of ...
Alekseyev, Almeida, Chen, Choi, Foss, Huang, Koos, Li, Liu, Quan, Sailing He, Shen, Smith, Xiaodong Yang, Yang, Yao, Yingran He   +16 more
core   +1 more source

Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges

Advanced Functional Materials, EarlyView.
Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky, Tuo Zhao, Glaucio H. Paulino, Emily C. Davidson   +3 more
wiley   +1 more source

Acoustic lattice resonances and generalised Rayleigh–Bloch waves

Communications Physics
The intrigue of waves on periodic lattices and gratings has resonated with physicists and mathematicians alike for decades. In-depth analysis has been devoted to the seemingly simplest array system: a one-dimensionally periodic lattice of two-dimensional
G. J. Chaplain, S. C. Hawkins, M. A. Peter, L. G. Bennetts, T. A. Starkey   +4 more
doaj   +1 more source