Results 121 to 130 of about 209,307 (271)

Directional Coupler Based on a Photonic Quasi-Crystal Fiber with Extended Cores

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
In this paper, an optical coupler composed by a photonic quasi-crystal fiber (PQCF) with two cores is proposed. The structure is obtained by immersion of a quasi-periodic arrangement of air holes replicated twelve-fold in a conventional fiber optical ...
J. P. da Silva, Einstein G. dos Santos, Marcos T. B. Segundo   +2 more
doaj   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Thin liquid film thickness measurement using stepped-index-type optical fiber sensors

Journal of Fluid Science and Technology
Optical fiber liquid film sensors utilizing the reflection intensity at the gas-liquid interface exhibit excellent environmental robustness. However, this technique needs to improve its sensitivity when measuring liquid film thicknesses approaching the ...
Shinsuke WATANABE, Yuki MIZUSHIMA, Toshiyuki SANADA   +2 more
doaj   +1 more source

Towards athermal Brillouin strain sensing based on heavily germania-doped core optical fibers

APL Photonics, 2019
Owing to their interesting linear and nonlinear optical properties, germania-based core optical fibers are being widely used in a wide range of applications ranging from nonlinear optics to optical sensing. We here examine both the strain and temperature
M. Deroh, T. Sylvestre, J. Chretien, H. Maillotte, B. Kibler, J.-C. Beugnot   +5 more
doaj   +1 more source

Optical Activity in Twisted Solid-Core Photonic Crystal Fibers [PDF]

, 2013
X. M. Xi, Thomas Weiß, G. K. L. Wong, Fabio Biancalana, S. M. Barnett, Miles J. Padgett, P. St. J. Russell   +6 more
openalex   +1 more source

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

Advanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee, Osman Gul, Yeongjae Kwon, Jaeseok Jeong, Seokjoo Cho, Jihyeon Ahn, Jehee Yu, Cheolmin Kim, Donho Lee, Hyeonseok Han, Byeongju Lee, Jungrak Choi, Ji‐Hwan Ha, Yongrok Jeong, Kyungnam Kang, Ali Javey, Junseong Ahn, Inkyu Park   +17 more
wiley   +1 more source

Spatiotemporal Plasma–Mediated Laser Fabrication of Ultrahigh‐Aspect‐Ratio Nanochannel Arrays for Vertical Perovskite Nanowire Semiconductor Devices

Advanced Functional Materials, EarlyView.
A spatiotemporal plasma–mediated laser processing approach is developed to fabricate ultrahigh–aspect ratio nanochannel arrays and corresponding perovskite nanowire arrays within transparent materials for optoelectronics devices. The laser‐fabricated nanochannels serve as templates for controlled perovskite infiltration and crystallization, enabling ...
Taijin Wang, Lingfeng Wang, Feng Liu, Gary J. Cheng   +3 more
wiley   +1 more source

Research on Four Core Fiber WDM Device Technology

Guangtongxin yanjiu
Space division multiplexing technology is one of the effective ways to improve the transmission capacity of optical communication system. The main technologies include Multi Core Fiber (MCF), few mode multiplexing and orbital angular momentum ...
CHEN Li, XIAO Qingming, WANG Min, JIANG Lei   +3 more
doaj  

Pr3+-doped YPO4 nanocrystal embedded into an optical fiber

Scientific Reports
Optical fiber with YPO4:Pr3+ nanocrystals (NCs) is presented for the first time using the glass powder—NCs doping method. The method’s advantage is separate preparation of NCs and glass to preserve luminescent and optical properties of NCs once they are ...
Dominik Dorosz, Marcin Kochanowicz, Rafael Valiente, Andrea Diego-Rucabado, Fernando Rodríguez, Nuria Siñeriz-Niembro, José I. Espeso, Magdalena Lesniak, Piotr Miluski, Sylvia Conzendorf, Juliane Posseckardt, Zhongquan Liao, Gloria Lesly Jimenez, Robert Müller, Martin Lorenz, Anka Schwuchow, Martin Leich, Adrian Lorenz, Katrin Wondraczek, Matthias Jäger   +19 more
doaj   +1 more source

Synchronized Electro‐Chromo‐Emissive Devices Using a Mixed Ionic‐Electronic Conductive Layer for XR Applications

Advanced Functional Materials, EarlyView.
A single cell type Electro‐chromo‐emissive (ECECL) device integrating synchronized electrochromic (EC) and electrochemiluminescent (ECL) functions is developed using a mixed ionic‐electronic conductor (MIEC). A MIEC layer reduces ionic/electronic resistance, enabling ultrafast switching and enhanced optical contrast.
Hwandong Jang, Sienoh Park, Won‐Jae Joo, Jinbo Kim, Nori Kobayashi, Eunkyoung Kim   +5 more
wiley   +1 more source