Results 41 to 50 of about 10,498 (267)

Active and tunable nanophotonic metamaterials

Nanophotonics, 2022
Metamaterials enable subwavelength tailoring of light–matter interactions, driving fundamental discoveries which fuel novel applications in areas ranging from compressed sensing to quantum engineering.
Fan Kebin, Averitt Richard D., Padilla Willie J.   +2 more
doaj   +1 more source

Bianisotropic Effective Parameters of Optical Metamagnetics and Negative-Index Materials

, 2011
Approaches to the adequate homogenization of optical metamaterials are becoming more and more complex, primarily due to an increased understanding of the role of asymmetric electrical and magnetic responses, in addition to the nonlocal effects of the ...
Joshua D. Borneman, Vladimir M. Shalaev, Drachev, Vladimir P., Xingjie Ni, Borneman, Joshua D., Vladimir P. Drachev, Kildishev, Alexander V., Ni, Xingjie, Shalaev, Vladimir M., Alexander V. Kildishev   +9 more
core   +1 more source

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

Ablation behavior and microwave absorption performance of metamaterials irradiated by high-energy continuous-wave laser

Materials & Design, 2023
Metamaterials, typically consisting of sub-wavelength metal-atom arrays and a dielectric layer matrix such as glass fiber reinforced epoxy resin (FR-4), have been widely used in the field of stealth equipment due to their good electromagnetic parameter ...
Yueze Zhen, Zhuang Ma, Lihong Gao, Donghong Wang, Chenghua Wei, Yuwei Lv, Zekui Zhang, Hanyang Liu, Yinghua Wang, Weiye Xu, Miao Jiang   +10 more
doaj   +1 more source

Mechanical nonlinearities in electromagnetic metamaterials

, 2013
We review our recent achievements in the development of metamaterials with mechanical nonlinearity. The novel nonlinearity types are achieved by enabling new degrees of freedom in metamaterial design, which allow a dynamic changes in the geometry of ...
Lapine, M, M. Lapine
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

Powering Nanocrystal‐Based Heat Engines With Light‐Emitting Metasurfaces That Influence Their Temperature

Advanced Functional Materials, EarlyView.
Metasurfaces and other structured photonic environments can dramatically modify the absorption and/or light emission of semiconductors. However, the consequences of these changes on the temperature of the system are not well understood. The authors address this problem for colloidal nanocrystals and leverage their findings to convert light into ...
Hugo Kowalczyk, Yihao Yuan, Augustin Caillas, Amel Saidoun, Roméo Bonnet, Pascal Filloux, Emmanuel Lhuillier, Aloyse Degiron   +7 more
wiley   +1 more source

Flexible and tunable electromagnetic meta-atom based on silver nanowire networks

Materials & Design, 2019
Electromagnetic interference (EMI) shielding metamaterials have become indispensable in reducing electromagnetic (EM) wave radiation pollution. In this study, a flexible and tunable EM meta-atom was proposed and fabricated for EMI shielding metamaterials.
Chang Liu, Jun Cai, Xinghao Li, Wenqiang Zhang, Deyuan Zhang   +4 more
doaj   +1 more source

Microelectromechanical Maltese-cross metamaterial with tunable terahertz anisotropy

, 2012
Dichroic polarizers and waveplates exploiting anisotropic materials have vast applications in displays and numerous optical components, such as filters, beamsplitters and isolators. Artificial anisotropic media were recently suggested for the realization
Zhu, W.M., Zhang, X.H., Bourouina, T., Kwong, D.L., Tsai, D.P., Liu, A.Q., Lo, G.Q., Zheludev, N.I., Teng, J.H.   +8 more
core   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source