Results 101 to 110 of about 7,053 (306)

Absorption Enhancement in Thin Organic Solar Cells With MoO3/Ag/MoO3 Transparent Anode Based on Short-Pitched Metallic Grating

IEEE Photonics Journal, 2017
The multilayer film consisting of MoO3/Ag/MoO3 (shortened as MAM) is very promising as an alternative of indium-tin oxide (ITO) to work as the transparent anode in organic solar cells (OSCs).
Ye Zhang, Yanxia Cui, Ting Ji, Yuying Hao, Furong Zhu   +4 more
doaj   +1 more source

Enhanced Trapping with an Optimized Graphene‐Based Bowtie Plasmonic Nanotweezer: Design, Analysis, and Bioanalytical Applications

Advanced Photonics Research, EarlyView.
A graphene‐based bowtie plasmonic nanotweezer is designed and optimized using particle swarm optimization and transfer matrix analysis. The structure achieves strong field confinement, delivering trapping forces up to 6 nN W−1 for 10 nm bioparticles with sixfold lower power requirements than conventional designs.
Saba Ebrahimpanah, Mohammad Hazhir Mozaffari, Ali Farmani   +2 more
wiley   +1 more source

Synthetic Fourier Domain Optical Coherence Tomography

Advanced Photonics Research
A novel approach for image formation in optical coherence tomography (OCT) and microscopy is presented. The depth resolution of OCT, including recently developed nanosensitive OCT (nsOCT), is limited by the spectral bandwidth of the light source used for
Sergey Alexandrov, Ryan McAuley, Rajib Dey, Anand Arangath, Yi Zhou, Andrew Nolan, Peter Owens, Martin Leahy   +7 more
doaj   +1 more source

Subwavelength imaging at optical frequencies using a transmission device formed by a periodic layered metal-dielectric structure operating in the canalization regime [PDF]

, 2006
Pavel A. Belov, Yang Hao
openalex   +1 more source

Computational Analysis of a GST‐Based Long‐Wave Infrared Microring Resonator on a ZnSe Platform as a Photonic Sensor

Advanced Photonics Research, EarlyView.
A Ge2Sb2Te5 (GST)‐based microring resonator is designed and simulated on a ZnSe‐platform that operates in the long‐wave infrared (LWIR) wavelength of 8 μm. The structure demonstrates strong power confinement and high Q‐factor. GST resonator is used for gas and biosensing applications.
Tanzina Rahman, Md. Islahur Rahman Ebon, Amrita Kumar Sana, Jaker Hossain   +3 more
wiley   +1 more source

Emergent Berry Curvature in Inversion-Symmetric Photonic Crystals for Ultraconfined Topological States. [PDF]

Adv Mater
In this work, nonzero Berry curvature in photonic crystals is induced by breaking unit cell inversion symmetry through spatial shifts rather than geometrical modifications. This enables the design of ultraconfined topological states with subwavelength in‐plane field confinement and out‐of‐plane field isolation.
Tan YJ, Singh R.
europepmc   +2 more sources

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Theoretical Investigation of the Sensitivity—Q Trade‐off in Terahertz Graphene Metamaterial Sensors via Interdigitated Design and Complex‐Frequency Waves

Advanced Sensor Research, EarlyView.
A dual strategy combining interdigitated graphene resonators and complex‐frequency waves yields a 54‐fold Q$Q$‐factor enhancement and superior sensitivity, establishing a high‐FOM platform for ultrasensitive terahertz biosensing. ABSTRACT Terahertz (THz) technology holds great promise in biomedical imaging, non‐destructive testing, biosensing, and ...
Mingxuan Mao, Xiaochi Ma, Yiming Zhang, Lei Cao   +3 more
wiley   +1 more source

On-chip mode-selective manipulation based on the modal-field redistribution assisted with subwavelength grating structures [PDF]

, 2023
Xiaolin Yi, Chenlei Li, Weike Zhao, Long Zhang, Yaocheng Shi, Daoxin Dai   +5 more
openalex   +1 more source

Piezoelectric‐Metal Phononic Crystal Enabling GHz Tunable Ultrahigh Q Quasi‐BIC Mode

Advanced Science, EarlyView.
This study introduces a piezoelectric–metal phononic crystal design based on suspended LiNbO3 thin film that realizes quasi‐BIC resonance. The device achieves GHz operation with an ultrahigh quality factor (≈6.5 × 104) and efficient electrical tunability at low voltage.
Xuankai Xu, Jiawei Li, Ruoyu Wang, Ruihong Xiong, Yiwei Wang, Xiaoqin Shen, Tao Wu   +6 more
wiley   +1 more source