Results 61 to 70 of about 526,512 (257)

Fractional Effective Charges and Misner-Wheeler Charge without Charge Effect in Metamaterials

Photonics, 2016
Transformation optics enables engineering of the effective topology and dimensionality of the optical space in metamaterials. Nonlinear optics of such metamaterials may mimic Kaluza-Klein theories having one or more kinds of effective charges.
Igor Smolyaninov
doaj   +1 more source

Electrochemistry‐Enabled Optical and Plasmonic Programmable Metasurfaces

Advanced Optical Materials, EarlyView.
Electrochemistry is emerging as a promising approach for engineering optical and plasmonic metasurfaces, from the fabrication of nanoscale structures to their dynamic control. This Perspective reviews electrochemical strategies for creating and tuning metasurfaces, examines current challenges and opportunities, and discusses how integration with ...
Charlène Brissaud, Leonardo Scarabelli
wiley   +1 more source

Trapped-modes, slow light and collective resonances in metamaterials

, 2009
A new class of metamaterials exhibiting coherent, collective response has been introduced. It is shown that the sharp resonant behaviour of coherent metamaterials can only be observed in arrays of metamaterial elements and is absent from the response of ...
Papasimakis, Nikitas
core   +1 more source

Dynamic electromagnetic metamaterials

Materials Today, 2015
Electromagnetic metamaterials are designer materials made from ‘artificial atoms’ which provide unprecedented control over light matter interactions. Metamaterials are fashioned to yield a specific response to the electric and magnetic components of light and have realized a multitude of exotic properties difficult to achieve with natural materials ...
Fan, Kebin, Padilla, Willie J.
openaire   +1 more source

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik, Fedor Kovalev, Mingkai Liu, Michal Zawierta, Dilusha Silva, Lorenzo Faraone, Mariusz Martyniuk, Ilya Shadrivov   +7 more
wiley   +1 more source

1D chirality in all-photodesigned THz metamaterials

, 2017
We suggest that all-photodesigned metamaterials, sub-wavelength custom patterns of photoexcited carriers on a semiconductor, can display an exotic extrinsic electromagnetic chirality in terahertz (THz) frequency range.
Prati, F., Brambilla, M., C. Rizza, M. Brambilla, A. Ciattoni, Massimo Brambilla, Rizza, C., L. Columbo, F. Prati, Lorenzo Columbo, Columbo, L., Franco Prati, Ciattoni, A., Rizza C., Ciattoni A, Brambilla M., Brambilla M, Columbo L., Prati F., Columbo L, Prati F, Ciattoni A., Rizza C   +22 more
core   +1 more source

Dielectric Metamaterials with Toroidal Dipolar Response

Physical Review X, 2015
Toroidal multipoles are the terms missing in the standard multipole expansion; they are usually overlooked due to their relatively weak coupling to the electromagnetic fields.
Alexey A. Basharin, Maria Kafesaki, Eleftherios N. Economou, Costas M. Soukoulis, Vassili A. Fedotov, Vassili Savinov, Nikolay I. Zheludev   +6 more
doaj   +1 more source

A guidance to intelligent metamaterials and metamaterials intelligence

Nature Communications
The bidirectional interactions between metamaterials and artificial intelligence have recently attracted immense interest to motivate scientists to revisit respective communities, giving rise to the proliferation of intelligent metamaterials and ...
Chao Qian, Ido Kaminer, Hongsheng Chen
doaj   +1 more source

A simplified analytical approach to calculation of the electromagnetic behavior of left-handed metamaterials with a graded refractive index profile [PDF]

Science of Sintering, 2007
We investigated the spectral properties of a new class of nanostructured artificial composite materials with tailored electromagnetic response, i.e. negative refractive index materials, also known as "left-handed" metamaterials.
Dalarsson N., Maksimović M., Jakšić Z.   +2 more
doaj   +1 more source

Electromagnetic cloaking with metamaterials

Materials Today, 2009
Electromagnetic cloaking has aroused increasing interest in the scientific community, especially amongst researchers who are developing so-called metamaterials - artificial composites having exotic electromagnetic properties. In this paper we review the basic principles of metamaterials, especially those for cloaking applications, and describe the ...
Alitalo, P., Tretyakov, S.
openaire   +2 more sources