Results 31 to 40 of about 9,788 (273)

On-Site Wireless Power Generation

, 2018
Conventional wireless power transfer systems consist of a microwave power generator and a microwave power receiver separated by some distance. To realize efficient power transfer, the system is typically brought to resonance, and the coupled-antenna mode
Alu, A., Chowkwale, B., Liu, F., Ra'di, Y., Simovski, C. R., Tretyakov, S. A., Valagiannopoulos, C. A.   +6 more
core   +1 more source

Flexible Design of Broadside-Radiating Linearly-Polarized Edge-Fed Metasurface Antennas

IEEE Access
In this work, we design and fabricate broadside-radiating edge-fed metasurface antennas with linear polarization employing a spatially-varying isotropic reactance; in order to avoid losses, the antenna is not terminated on a matched load.
Lucia Teodorani, Marcello Zucchi, Giorgio Giordanengo, Rossella Gaffoglio, Giuseppe Vecchi   +4 more
doaj   +1 more source

Acoustic Supercoupling in a Zero-Compressibility Waveguide

, 2018
Funneling acoustic waves through largely mismatched channels is of fundamental importance to tailor and transmit sound for a variety of applications. In electromagnetics, zero-permittivity metamaterials have been used to enhance the coupling of energy in
Alù, A., Byrne, M. S., Esfahlani, H., McDermott, M.   +3 more
core   +1 more source

Coherently coupled photonic-crystal surface-emitting laser array [PDF]

, 2015
The realization of a 1 × 2 coherently coupled photonic crystal surface emitting laser array is reported.
Babazadeh, Nasser, Childs, David T.D., Crombie, Alex J., Hogg, Richard A., Ivanov, Pavlo, Khamas, Salam, Li, Guangrui, Sarma, Jayanta, Stevens, Ben J., Taylor, Richard J.E., Ternent, Gary, Thoms, Stephen, Zhou, Haiping   +12 more
core   +1 more source

Comparative Modeling of Infrared Fiber Lasers

Photonics, 2018
The modeling and design of fiber lasers facilitate the process of their practical realization. Of particular interest during the last few years is the development of lanthanide ion-doped fiber lasers that operate at wavelengths exceeding 2000 nm.
Slawomir Sujecki, Lukasz Sojka, Angela B. Seddon, Trevor M. Benson, Emma Barney, Mario C. Falconi, Francesco Prudenzano, Marian Marciniak, Hovik Baghdasaryan, Pavel Peterka, Stefano Taccheo   +10 more
doaj   +1 more source

Two-photon exchange and electromagnetic proton form factors [PDF]

Nuclear Physics A, 2005
The presence of $2 $-exchange in electron proton elastic scattering is discussed. From C-invariance and crossing symmetry, $2 $ contribution induces a specific dependence of the reduced cross section on the variable $ $. No evidence of such dependence exists in the available experimental data.
openaire   +3 more sources

Full Hydrodynamic Model of Nonlinear Electromagnetic Response in Metallic Metamaterials

, 2016
Applications of metallic metamaterials have generated significant interest in recent years. Electromagnetic behavior of metamaterials in the optical range is usually characterized by a local-linear response.
Fang, Ming, Huang, Zhixiang, Sha, Wei E. I., Wu, Xianliang, Xiong, Xiaoyan Y. Z.   +4 more
core   +1 more source

Negative Refraction and Left-Handed Electromagnetism in Microwave Photonic Crystals [PDF]

Physical Review Letters, 2004
We demonstrate negative refraction of microwaves in metallic photonic crystals. The spectral response of the photonic crystal, which manifests both positive and negative refraction, is in complete agreement with band-structure calculations and numerical simulations. The negative refraction observed corresponds to left-handed electromagnetism and arises
P V, Parimi, W T, Lu, P, Vodo, J, Sokoloff, J S, Derov, S, Sridhar   +5 more
openaire   +3 more sources

Three‐dimensional Antimony Sulfide Based Flat Optics

Advanced Functional Materials, EarlyView.
This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang, Uwe Hübner, Anne Gärtner, Tao Chen, Joseph Köbel, Franka Jahn, Daniel Repp, Abhrodeep Dey, Henrik Schneidwind, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Matthias Zeisberger, Tanveer Ahmed Shaik, Astrid Bingel, Markus A. Schmidt, Jer‐Shing Huang, Ulf Peschel, Volker Deckert   +18 more
wiley   +1 more source

Optimization of Nanoparticle-Based SERS Substrates through Large-Scale Realistic Simulations [PDF]

, 2016
Surface-enhanced Raman scattering (SERS) has become a widely used spectroscopic technique for chemical identification, providing unbeaten sensitivity down to the singlemolecule level. The amplification of the optical near field produced by collective
García de Abajo, Francisco Javier, Liz-Marzán, Luis M., Obelleiro, Fernando, Solís, Diego M., Taboada, José M,   +4 more
core   +2 more sources