Results 91 to 100 of about 19,023 (293)

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

Advanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong, James Trevarthen, Igor Dolbnya, Wadwan Singhapong, Nicholas Pilato, Richard Butler, Jiraphant Srisuriyachot, Alexander J. G. Lunt   +7 more
wiley   +1 more source

A novel polarization-insensitive semiconductor optical amplifier structure with large 3dB bandwidth

, 2001
A novel approach to achieving a polarization-insensitive semiconductor optical amplifier is presented. The active layer consists of graded tensile strained bulk-like structure.
Shu HY, Tian HL, Wang LF, Dong J, Zhang RY Chinese Acad Sci Inst Semicond Natl Res Ctr Optoelect Technol POB 912 Beijing 100083 Peoples R China., Wang W, Zhou F, Bian J, Zhang RY, Zhu HL   +9 more
core  

On Determination Method for Resolution of Secondary Electron Images in Scanning Electron Microscopy

Advanced Science, EarlyView.
An idealized SEM, termed Rayleigh's microscope, is constructed by Monte Carlo simulation to represent imaging conditions that just satisfy the Rayleigh criterion. Based on this physically defined model, sharpness–resolution conversion curves are established and combined with the Rose criterion, enabling automated resolution evaluation from practical ...
Tongfang Yang, Yanbo Zou, Zejun Ding
wiley   +1 more source

Compact polarization-insensitive arrayed waveguide grating based on SOI material

, 2005
A compact polarization-insensitive 8x8 arrayed waveguide grating with 100GHz channel spacing at 1.55 mu m is presented on the material of silicon on insulator (SOI).
Liu, YL, Li, F, Fang, Q, Chinese Acad Sci, Inst Semicond, Opt Elect Res & Dev Ctr, Beijing 100083, Peoples R China., Fang, Q   +3 more
core  

Polarization insensitive wavelength conversion in a dispersion-engineered silicon waveguide [PDF]

, 2012
We experimentally demonstrate polarization-insensitive all optical wavelength conversion of a 10-Gb/s DPSK data signal based on four-wave mixing in a silicon waveguide with an angled-pump scheme. Dispersion engineering is applied to the silicon waveguide
Ji, Hua, Galili, Michael, Hu, Hao, Hvam, Jørn Märcher, Pu, Minhao, Oxenløwe, Leif Katsuo, Yvind, Kresten, Jeppesen, Palle, Peucheret, Christophe   +8 more
core   +1 more source

Disruption of Treg Homeostasis in Rheumatoid Arthritis via Ferroptosis‐Mediated ETC Collapse and TXK‐STAT3/PLCγ1 Activation

Advanced Science, EarlyView.
In rheumatoid arthritis, synovial Tregs accumulate but are functionally impaired due to iron overload‐induced ferroptosis. This triggers mitochondrial dysfunction and TXK tyrosine kinase‐mediated signaling, leading to Treg destabilization and inflammation.
Jingrong Chen, Xiao Guan, Kexu Xiong, Xiaoyi Shi, Luyao Wu, Chuanxin Su, Jun Zhao, Rongzhen Liang, Huimin Wang, Junlong Dang, Ye Chen, Yiding Xiong, Chi Zhou, Futao Zhao, Zhenhang Zhu, Xiaoli Fan, Li Zhou, Nancy Olsen, Yutong Jiang, Song Guo Zheng   +19 more
wiley   +1 more source

Dual-band polarization-/angle-insensitive metamaterial absorber

AIP Advances, 2015
A dual-band metamaterial absorber (MA) based on triangular resonators is designed and investigated in this paper. It is composed of a two-dimensional periodic metal-dielectric-metal sandwiches array on a dielectric substrate.
Han Xiong, Lin-Lin Zhong, Chao-Ming Luo, Jing-Song Hong   +3 more
doaj   +1 more source

A polarization insensitive erbium-doped waveguide amplifier

We demonstrated a polarization-insensitive erbium doped silicon nitride amplifier based on a polarization equalizer. Off-chip net gain of 12 dB and < 0.5 dB polarization dependence is achieved with a -8.3 dBm input signal power at 1550 nm ...
Lihachev, Grigory, Qiu, Zheru, Yang, Xuan, Ji, Xinru, Liu, Yang, Kippenberg, Tobias J.   +5 more
core   +1 more source

Study of Free‐Space Optical Quantum Network: Review and Prospectives

Advanced Science, EarlyView.
Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley   +1 more source

Extreme Polaritonic Interactions in a Room‐Temperature Designable Sub‐Nanocavity Quantum Electrodynamic Platform

Advanced Science, EarlyView.
 A nanoparticle‐cluster‐on‐mirror (NPcoM) serves as a functionally deterministic sub‐nanocavity that emulates picocavities, enabling extreme light–matter interactions and polaritonic phenomena. ABSTRACT Pushing nanoscale optical confinement to its ultimate limits defines the regime of nano‐cavity quantum electrodynamics (nano‐cQED), where light‐matter ...
Huatian Hu, Xin Shu, Zhiwei Hu, Di Zheng, Ruiqian Zhang, Ximin Cui, Wei Dai, Xiang Lan, Xiaobo Han, Wen Chen, Hongxing Xu   +10 more
wiley   +1 more source