Results 41 to 50 of about 2,650 (240)

Polarimetric current sensor based on polarization division multiplexing detection

Optics Express, 2014
A polarimetric current sensor based on polarization division multiplexing (PDM) detection is proposed. The novel sensor head with a heat insulation cavity only induces a small level of birefringence. Comparing with polarization diversity (PD) detection, the sensitivity of PDM detection is the double of PD detection.
Shaoyi, Xu, Wei, Li, Fangfang, Xing, Yuqiao, Wang   +3 more
openaire   +2 more sources

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

State-of-the-Art and Perspectives on Silicon Waveguide Crossings: A Review

Micromachines, 2020
In the past few decades, silicon photonics has witnessed a ramp-up of investment in both research and industry. As a basic building block, silicon waveguide crossing is inevitable for dense silicon photonic integrated circuits and efficient crossing ...
Sailong Wu, Xin Mu, Lirong Cheng, Simei Mao, H.Y. Fu   +4 more
doaj   +1 more source

15 μm polarization coherent lidar incorporating time-division multiplexing

Optics Express, 2017
Atmospheric depolarization ratio and wind velocity are measured simultaneously by a single versatile coherent Doppler lidar (CDL). Backscattering components at parallel and perpendicular polarization states are obtained by using a single balanced detector, adopting time-division multiplexing technique.
Chong, Wang, Haiyun, Xia, Mingjia, Shangguan, Yunbin, Wu, Lu, Wang, Lijie, Zhao, Jiawei, Qiu, Renjun, Zhang   +7 more
openaire   +2 more sources

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Four Wave Mixing-Based Time Lens for Orthogonal Polarized Input Signals

IEEE Photonics Journal, 2017
We present highly efficient time-lenses for orthogonal polarized signal waves with a specific state of polarization. Our four-wave mixing based time-lenses exploit polarization mode dispersion to compensate for chromatic dispersion.
Avi Klein, Shir Shahal, Gilad Masri, Hamootal Duadi, Moti Fridman   +4 more
doaj   +1 more source

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

Emergence of highly profibrotic and proinflammatory Lrat+Fbln2+ HSC subpopulation in alcoholic hepatitis

Hepatology, EarlyView., 2022
Lrat+ quiescent hepatic stellate cells (qHSC) give rise to Lrat+Fbln2+ activated HSC (aHSC) in alcohol‐associated hepatitis and this subpopulation is highly profibrotic, inflammatory, and immunoregulatory based on their single cell transcriptomic profile. Abstract Background and Aims Relative roles of HSCs and portal fibroblasts in alcoholic hepatitis (
Steven Balog, Reika Fujiwara, Stephanie Q. Pan, Khairat B. El‐Baradie, Hye Yeon Choi, Sonal Sinha, Qihong Yang, Kinji Asahina, Yibu Chen, Meng Li, Matthew Salomon, Stanley W.‐K. Ng, Hidekazu Tsukamoto   +12 more
wiley   +1 more source

Practical Plug-and-Play Measurement-Device-Independent Quantum Key Distribution With Polarization Division Multiplexing

IEEE Access, 2018
We have implemented a practical plug-and-play measurement-device-independent quantum key distribution (MDI QKD) system with polarization division multiplexing (PDM).
Chang Hoon Park, Min Ki Woo, Byung Kwon Park, Min Soo Lee, Yong-Su Kim, Young-Wook Cho, Sangin Kim, Sang-Wook Han, Sung Moon   +8 more
doaj   +1 more source

One to Many QKD Network System Using Polarization-Wavelength Division Multiplexing

IEEE Access, 2020
The quantum key distribution (QKD) research, which is drawing attention as the next secure communication, is actively expanding from point to point system to network architecture. In QKD network system, it is important to increase the number of users who
Min Ki Woo, Byung Kwon Park, Yong-Su Kim, Young-Wook Cho, Hojoong Jung, Hyang-Tag Lim, Sangin Kim, Sung Moon, Sang-Wook Han   +8 more
doaj   +1 more source