Results 61 to 70 of about 18,394 (288)

A New Wideband Circularly Polarized Dielectric Resonator Antenna [PDF]

, 2014
A wideband and compact circularly polarized (CP) C-shaped dielectric resonator antenna (DRA) is presented. The proposed C-shaped DR is excited by a simple stripe line connected to a coplanar waveguide (CPW) feeding line.
Danesh, Sh., Ghahferokhi, S. E. A., Kamarudin, M. R., Khalily, M., Mokayef, M.   +4 more
core  

Improvement of dielectric loss of doped Ba0.5Sr0.5TiO3 thin films for tunable microwave devices [PDF]

, 2003
Al2O3-Ba0.5Sr0.5TiO3 (Al2O3-BST) thin films, with different Al2O3 contents, were deposited on (100) LaAlO3 substrate by pulsed laser deposition (PLD) technique.
C. K. Ong, C. Y. Tan, Chen C. L., Deflaviis F., Huang C. L., K. B. Chong, L. B. Kong, L. Yan, Linfeng Chen, T. Osipowicz, T. Yang   +10 more
core   +2 more sources

Toroidal resonance based optical modulator employing hybrid graphene-dielectric metasurface

Optics Express, 2017
In this paper, we demonstrate the combination of a dielectric metasurface with a graphene layer to realize a high performance toroidal resonance based optical modulator. The dielectric metasurface consists of two mirrored asymmetric silicon split-ring resonators (ASSRRs) that can support strong toroidal dipolar resonance with narrow line width (~0.77 ...
Gui-Dong Liu, Xiang Zhai, Sheng-Xuan Xia, Qi Lin, Chu-Jun Zhao, Ling-Ling Wang   +5 more
openaire   +2 more sources

Color Routing and Beam Steering of Single‐Molecule Emission with a Spherical Silicon Nanoantenna

Advanced Functional Materials, EarlyView.
We experimentally demonstrate broadband directional emission from single molecules using a single spherical silicon nanoparticle assembled via DNA origami. By varying nanoparticle (NP) size and emitter position, we achieve unidirectional emission, beam steering, and color routing at the nanoscale, revealing modal interference as the underlying ...
María Sanz‐Paz, Nicole Siegel, Guillermo Serrera, Javier González‐Colsa, Fangjia Zhu, Karol Kołątaj, Minoru Fujii, Hiroshi Sugimoto, Pablo Albella, Guillermo P. Acuna   +9 more
wiley   +1 more source

Coupling of a locally implanted rare-earth ion ensemble to a superconducting micro-resonator

, 2014
We demonstrate the coupling of rare-earth ions locally implanted in a substrate (Gd$^{3+}$ in Al$_{2}$O$_{3}$) to a superconducting NbN lumped-element micro-resonator. The hybrid device is fabricated by a controlled ion implantation of rare-earth ions in
Adamyan, A., de Graaf, S. E., Gwilliam, R., Kubatkin, S., Lindström, T., Meeson, P. J., Tzalenchuk, A. Ya., Wisby, I.   +7 more
core   +1 more source

Resonant Hybrid Metal–Dielectric Nanostructures for Local Color Generation

JETP Letters, 2022
Here, we experimentally and theoretically demonstrate a laser-induced change in local color based on the reshaping of gold–silicon asymmetric nanostructures. The evolution of scattering properties enabled by laser reshaping shows the potential of hybrid metal–dielectric nanostructures for color printing applications.
E. I. Ageev, V. A. Iudin, Y. Sun, E. A. Petrova, P. N. Kustov, V. V. Yaroshenko, J. V. Mikhailova, A. S. Gudovskikh, I. S. Mukhin, D. A. Zuev   +9 more
openaire   +1 more source

Sensorized Engineered Tissues with Built‐in Thermoregulation and Nutrient Supply

Advanced Functional Materials, EarlyView.
This work introduces a granular hydrogel‐based tissue engineering platform that includes a closed‐loop temperature control to maintain 37°C and sustainably releases nutrients, thereby enabling cells to retain a high viability even if stored at room temperature for up to 24 h.
Antonia Georgopoulou, Jakob Schreiner, Miriam Filippi, Aiste Balciunaite, Robert K. Katzschmann, Esther Amstad   +5 more
wiley   +1 more source

Hybrid Plasmonic–Photonic Panda-Ring Antenna Embedded with a Gold Grating for Dual-Mode Transmission

Technologies
This paper presents a systematic numerical investigation of a hybrid plasmonic–photonic Panda-ring antenna with an embedded gold grating, designed to enable efficient dual-mode radiation for optical and terahertz communication systems.
Sirigiet Phunklang, Atawit Jantaupalee, Patawee Mesawad, Preecha Yupapin, Piyaporn Krachodnok   +4 more
doaj   +1 more source

Dielectric Resonator Direction Finding Antenna

International Journal of Antennas and Propagation, 2011
The idea of using a cylindrical dielectric resonator antenna for mechanical direction finding and target tracking is presented. The hybrid feeding network of the receiving antenna comprised two ports: one for the broadside-type sum pattern and another ...
Laila Hady Salman, Darko Kajfez, Ahmed A. Kishk   +2 more
doaj   +1 more source

A Triple Band Hybrid MIMO Rectangular Dielectric Resonator Antenna for LTE Applications

IEEE Access, 2019
In this paper, a triple band Multiple-Input Multiple-Output (MIMO) Rectangular Dielectric Resonator Antenna (RDRA) designed using hybrid techniques for Long Term Evolution (LTE) applications is investigated and presented.
Irene Kong Cheh Lin, Mohd Haizal Jamaluddin, Azlan Awang, Raghuraman Selvaraju, Muhammad Hashim Dahri, Leow Chee Yen, Hasliza A. Rahim   +6 more
doaj   +1 more source