Results 51 to 60 of about 5,177 (243)

Terahertz Chiral Metamaterials Enabling Broadband Polarization Conversion Using Polarization Guiding Effect

Advanced Materials Technologies, EarlyView.
A broadband terahertz polarization rotator consisting of twistingly stacked silicon–air metagratings is designed based on the polarization guiding effect and experimentally shown to achieve 90° linear polarization rotation for both TE and TM incidences.
Yun‐Seok Choi, Tae Gwan Park, Antoinette J. Taylor, Hou‐Tong Chen, Abul K. Azad   +4 more
wiley   +1 more source

Using Mechanically-Induced Long-Period Fiber Gratings for OAM Modes Generation Based on Anti-Resonant Mechanisms in Ring-Core Fibers

IEEE Photonics Journal, 2022
A flexible first-order OAM modes generation in ring-core fibers (RCFs) based on a mechanically-induced long-period fiber grating (MLPFG) is proposed. By directly fusion splicing a standard single-mode fiber (SMF) and RCFs, the anti-resonant reflection ...
Jianheng Qiu, Fufei Pang, Liang Zhang, Heming Wei, Yana Shang, Wei Chen, Sujuan Huang, Tingyun Wang   +7 more
doaj   +1 more source

Advances in Safe, Flexible, and Stretchable Batteries for Wearable Applications

Advanced Materials Technologies, EarlyView.
Unlike previous reviews centered on component‐based deformability, this work highlights safety‐driven design strategies for flexible and stretchable batteries. By integrating material‐level engineering, geometry‐controlled structures, biocompatibility, and self‐protection mechanisms, it establishes a unified framework that connects mechanical ...
Hyewon Kang, Garan Byun, Seunghyeb Ban, Yunuo Huang, Woon‐Hong Yeo   +4 more
wiley   +1 more source

Fiber Bragg Gratings with Micro‐Engineered Temperature Coefficients

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
Fiber Bragg gratings (FBGs) are intrinsically responsive to temperature and strain simultaneously. In this research, low‐loss FBGs with micro‐engineered temperature coefficients are fabricated, utilizing refractive index liquid‐filled microchannels in the cladding.
Zipei Song, Mohan Wang, Frank P. Payne, Patrick S. Salter, Tongyu Liu, Steve J. Elston, Martin J. Booth, Stephen M. Morris, Julian A. J. Fells   +8 more
wiley   +1 more source

Long period grating resonances in photonic bandgap fiber

Optics Express, 2006
We demonstrate the formation of stress-induced long period gratings (LPGs) in fluid-filled photonic bandgap fiber (PBGF). Based on our experimental results, simulations, and theoretical understanding of LPGs, we identify coupling to a guided LP(11)-like mode of the core and lossy LP1x-like modes of cladding microstructure for a single grating period ...
P, Steinvurzel, E D, Moore, E C, Mägi, B T, Kuhlmey, B J, Eggleton   +4 more
openaire   +2 more sources

Responsive Visible‐Wavelength Metasurfaces from Porous Silicon Based on Fano Guided‐Mode Resonance

Advanced Optical Materials, EarlyView.
The article introduces mesoporous silicon metasurfaces (pSi‐MS) supporting Fano guided‐mode resonances in the visible regime. By combining top‐down lithographic patterning of 2D gratings with bottom‐up electrochemical porosification, the approach realizes a new class of responsive metasurfaces, enabling highly sensitive and portable platforms for small
Tomoshree Dash, Saddam Gafsi, Estevao Marques Dos Santos, Ivan Kravchenko, Judson D. Ryckman   +4 more
wiley   +1 more source

Long Period Fiber Grating Inscribed in Hollow-Core Photonic Bandgap Fiber for Gas Pressure Sensing

IEEE Photonics Journal, 2017
In this paper, we have proposed and experimentally prepared an improved gas pressure sensing device. It is mainly constructed by a short hollow silica tube segment and a CO2-laser-induced long period grating in hollow-core photonic bandgap fiber (HC-PBF).
Jian Tang, Zhe Zhang, Guolu Yin, Shen Liu, Zhiyong Bai, Zhengyong Li, Mi Deng, Ying Wang, Changrui Liao, Jun He, Wei Jin, Gang-Ding Peng, Yiping Wang   +12 more
doaj   +1 more source

Polarization‐Sensitive Au‐TiO2 Nanopillars for Tailored Plasmonic Enhanced Light‐Driven Reaction Activity

Advanced Optical Materials, EarlyView.
Manipulating the product generation yield is achieved on a model plasmonic resonance‐driven reaction by tuning the nonthermal effects of localized surface plasmonic resonance on an elliptical Au‐TiO2 nanopillar metasurface. Asymmetric configuration of the elliptical nanopillar array governs the polarization‐dependent optical properties redshifting the ...
Ning Lyu, Anjalie Edirisooriya, Zelio Fusco, Dawei Liu, Lan Fu, Fiona J. Beck, Christin David   +6 more
wiley   +1 more source

Mechanically Induced Long-Period Fiber Gratings and Applications

Photonics
Long-period fiber gratings (LPFGs) functioning as band-reject filters have played a pivotal role in the realm of optical communication. Since their initial documentation in 1996, LPFGs have witnessed rapid advancements in areas such as optical sensing ...
Jiaqi Ran, Yarou Chen, Guanhua Wang, Zelan Zhong, Jiali Zhang, Ou Xu, Quandong Huang, Xueqin Lei   +7 more
doaj   +1 more source

Sensing Characteristics of Side-Hole Fiber-Based Long-Period Grating

Advances in Materials Science and Engineering, 2013
Long-period gratings (LPGs) have been fabricated in a side-hole fiber (SHF) by using a pulsed CO2 laser. Sensing characteristics of this SHF-LPG to temperature surrounding refractive index and bend have been investigated.
Yi Xin, Xinyong Dong, Junwei Yuan, Yi Li, Shangzhong Jin, Sulei Zhang   +5 more
doaj   +1 more source