Results 71 to 80 of about 76,300 (255)

Two‐Dimensional Isotropic Spatial Differentiation Through Complete Polarization Control

Advanced Optical Materials, EarlyView.
This work enables two‐dimensional isotropic spatial differentiation at planar interfaces over a wide range of incident angles by extending the output polarization from linear to elliptical. The choice of incident angle can be used to balance broader spectral response at low angles and higher edge‐detection efficiency at larger angles.
Doyoon Lee, Minkyung Kim
wiley   +1 more source

Interference-Aware Resource Optimization for Device-to-Device Communications in 5G Networks

IEEE Access, 2018
In this paper, we investigate the resource optimization problem for device-to-device (D2D) communications in the fifth-generation cellular networks, where multiple D2D links and cellular links share the same spectrum.
Yuanyuan Hao, Qiang Ni, Hai Li, Shujuan Hou, Geyong Min   +4 more
doaj   +1 more source

Deterministic Transferable Planar Dielectric Mirrors for Investigating Strong Light–Matter Coupling

Advanced Optical Materials, EarlyView.
Transferable dielectric distributed Bragg reflectors enable the deterministic assembly of high‐quality planar microcavities while maintaining the intrinsic properties of quantum materials during fabrication. The resulting structures exhibit robust exciton‐photon coupling in monolayer WS2${\rm WS}_{2}$ from cryogenic to room temperature, establishing a ...
Atanu Patra, Subhamoy Sahoo, Johannes Düreth, Simon Betzold, Sven Höfling   +4 more
wiley   +1 more source

Delay minimization based uplink resource allocation for device-to-device communications considering mmWave propagation. [PDF]

PeerJ Comput Sci, 2021
Ferreira MVG, Vieira FHT.
europepmc   +1 more source

Tunable Quasi‐Resonances in Polypyrrole Nanodisks

Advanced Optical Materials, EarlyView.
Polaronic carrier absorption enables electrochemically switchable quasi‐resonances in conducting polymer nanoantennas. ABSTRACT Redox‐tunable conducting polymers have emerged as promising materials for dynamic plasmonics and metasurfaces. However, only a few conducting polymers with particularly high conductivities (>1000 S/cm) have been reported to ...
Weiwei Liu, Chaoyang Kuang, Vallery Stanishev, Vanya Darakchieva, Shangzhi Chen, Magnus P. Jonsson   +5 more
wiley   +1 more source

Strong Photoluminescence Enhancement in All‐Dielectric Ge Thin Film Metasurfaces for Integration on the Si Platform

Advanced Optical Materials, EarlyView.
Germanium (Ge) all‐dielectric metasurfaces can be leveraged to strongly enhance the radiative emission from Ge layers grown on silicon‐on‐insulator substrates by industry‐standard processes. At room‐temperature, the narrowband photoluminescence (PL) intensity is enhanced by a factor ∼40× with respect to unstructured films.
Jon Schlipf, Diana Ryzhak, Giovanni Capellini, Paul Oleynik, Oliver Skibitzki, Yuji Yamamoto, Inga A. Fischer   +6 more
wiley   +1 more source

Wi-Fi Assisted Contextual Multi-Armed Bandit for Neighbor Discovery and Selection in Millimeter Wave Device to Device Communications. [PDF]

Sensors (Basel), 2021
Hashima S, Hatano K, Kasban H, Mahmoud Mohamed E.   +3 more
europepmc   +1 more source

On‐Chip Photonic Neural Network Architectures

Advanced Optical Materials, EarlyView.
This review presents a comprehensive overview of on‐chip photonic neural network architectures, covering key photonic building blocks, representative network types, and emerging applications. Recent advances, implementation challenges, and future directions are examined, highlighting the potential of integrated photonics to enable ultrafast, energy ...
Seokjin Hong, Berkay Neseli, Seungyeon Cho, Seungsoo Lee, Yeonjun Kim, Seungyoon Choi, Hyo‐Hoon Park, Hamza Kurt   +7 more
wiley   +1 more source

Hydrophobic 1D and 3D Anodic Alumina Radiative Coolers on Aluminum: Humidity‐Resilient Daytime Sub‐Ambient Cooling

Advanced Optical Materials, EarlyView.
1D and 3D nanoporous anodic aluminum oxide (AAO) surfaces were functionalized with stearic acid (STA) to increase hydrophobicity and reduce the influence of humidity on radiative cooling performance. The STA coating improves cooling behavior under humid atmospheric conditions (Madrid summer), before while keeping the optical properties required for ...
Luis Moreno‐Sanabria, Carlos G. Cobos, Nadia Pastor, Marisol Martín‐González, Cristina V. Manzano   +4 more
wiley   +1 more source

Operator Profit-Aware Wireless Virtualization for Device-to-Device Communications Underlaying LTE Networks

IEEE Access, 2017
This paper investigates the operator profit from virtual resource allocation in device-to-device (D2D) communications underlaying long-term evolution networks.
Yulun Cheng, Longxiang Yang, Hongbo Zhu
doaj   +1 more source