Results 201 to 210 of about 133,766 (295)

Future Development Strategy of Piezoelectric Devices. [PDF]

Micromachines (Basel)
Uchino K.
europepmc   +1 more source

Effect of Host Anisotropy on Phosphorescent Emitter Orientation and Light Outcoupling in OLEDs

Advanced Optical Materials, EarlyView.
The orientation of the emissive transition dipole moment of a cage‐type Iridium complex can be tuned by the anisotropic alignment of the cohost material, which is expressed as the S$S$ parameter of the film. Thus, the external quantum efficiency of OLEDs can be further enhanced to reach values above 30%.
Bình‐Minh Nguyễn, Jonas Kröber, Philipp Schütz, Klaus Ruhland, Falk May, Wolfgang Brütting   +5 more
wiley   +1 more source

Fractal-based compact quad-port THz MIMO antenna with ultra-wideband and high isolation for 6G and TWPAN applications. [PDF]

Sci Rep
Chinnamuthu A, Iruthayanathan N, Ramprabhu S, Arjunan RV, Shailesh T.   +4 more
europepmc   +1 more source

Reduction of mutual coupling in small dipole array antenna

, 2003
The mutual coupling in phased array is a well-known phenomenon. It affects the active element pattern of the array as the phase of the individual element is altered. In an array that has many elements, the effect is identical for all the elements that are nearer to the center of the antenna, thus allowing a more predictable scan performance with ...
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

System-Level Assessment of Ka-Band Digital Beamforming Receivers and Transmitters Implementing Large Thinned Antenna Array for Low Earth Orbit Satellite Communications. [PDF]

Sensors (Basel)
Lasagni G, Calcaterra A, Righini M, Gasparro G, Maddio S, Pascale V, Cidronali A, Selleri S.   +7 more
europepmc   +1 more source

Accelerating Luminescence in Nanostructures: Exploring the Physical Limits and Impact of Ultrafast Emission in Nanoscale Materials

Advanced Photonics Research, EarlyView.
This review highlights recent advances in accelerating luminescence in nanostructures through cooperative emission, resonator coupling, and nonlocal light–matter interactions. By unifying concepts such as excitonic superradiance, superfluorescence, and the plasmonic Purcell effect, it reveals physical limits of ultrafast emission and their potential ...
Masaaki Ashida, Koichi Okamoto, Takuya Matsuda, Hajime Ishihara   +3 more
wiley   +1 more source

Machine Learning-Driven Inspired MTM and Parasitic Ring Optimization for Enhanced Isolation and Gain in 26 GHz MIMO Antenna Arrays. [PDF]

Micromachines (Basel)
Chouikhi L, Essid C, Ben Salah B, Ben Moussa M, Sakli H.   +4 more
europepmc   +1 more source

Macromodeling of Electrical Interconnects and Packages via PEEC Approach [PDF]

, 2002
Vialardi E., Canavero F.G.
core  

An Ultra‐Wideband Metasurface Perfect Absorber Based on Hybrid Absorption Modes

Advanced Photonics Research, EarlyView.
A Ge2Sb2Te5 metasurface absorber enables polarization‐independent, ultrabroadband (UV–NIR) light absorption with high angular tolerance. Its performance stems from overlapping electric and magnetic dipole resonances in a symmetric structure, achieving 94% average absorption and maintaining 83% even at 70° incidence, promising for integrated ...
Dingbang Liu, Yusa Chen, Yunhao Cao, Lijun Ma, Shuai Wang, HongShun Sun, Mingyao Gao, Dingyi Yang, Wengang Wu   +8 more
wiley   +1 more source