Results 101 to 110 of about 4,023,657 (313)

Dynamic microvascular monitoring with miniaturized omnidirectional broadband photoacoustic imaging system for living entities (MOBILE)

Nature Communications
Microcirculation monitoring is crucial for evaluating cardiovascular health and detecting organ dysfunction early, but existing bedside imaging techniques often cannot provide sufficient resolution and depth for dynamic assessment during natural ...
Wei Li, Xue Bai, Yizhi Liang, Peiqian He, Yachao Zhang, Qi Zhang, Zixuan Zhang, Chaoneng Wu, Changze Song, Shirong Li, Yejing Zheng, Zhixuan Hu, Xiaoxuan Zhong, Linghao Cheng, Long Jin, Bai-Ou Guan   +15 more
doaj   +1 more source

Electrochemistry‐Enabled Optical and Plasmonic Programmable Metasurfaces

Advanced Optical Materials, EarlyView.
Electrochemistry is emerging as a promising approach for engineering optical and plasmonic metasurfaces, from the fabrication of nanoscale structures to their dynamic control. This Perspective reviews electrochemical strategies for creating and tuning metasurfaces, examines current challenges and opportunities, and discusses how integration with ...
Charlène Brissaud, Leonardo Scarabelli
wiley   +1 more source

Underwater optical wireless communications : depth dependent variations in attenuation [PDF]

, 2013
Depth variations in the attenuation coefficient for light in the ocean were calculated using a one-parameter model based on the chlorophyll-a concentration Cc and experimentally-determined Gaussian chlorophyll-depth profiles.
Leeson, Mark S., Green, Roger, Johnson, Laura J.   +2 more
core   +1 more source

Residual Tetramethylammonium Hydroxide Limits ZnO Nanoparticle‐Based Quantum Dot Light‐Emitting Diode Performance

Advanced Optical Materials, EarlyView.
Residual tetramethylammonium hydroxide (TMAH) from ZnO nanoparticle (NP) synthesis is uncovered as a hidden impurity that migrates into quantum dot emissive layers during thermal processing. The resulting exciton quenching reduces the efficiency of quantum dot light‐emitting diodes despite improved electron transport upon annealing.
Ganghyun Park, Joonyeon Hwang, Hayeon Seo, Jisu Hwang, Jinsu Park, Wan Ki Bae, Jeonghun Kwak   +6 more
wiley   +1 more source

Broadband Photonic RF Channelization Based on Coherent Optical Frequency Combs and I/Q Demodulators

IEEE Photonics Journal, 2012
In this paper, a novel photonic-assisted broadband and high-resolution radio-frequency (RF) channelization scheme based on dual coherent optical frequency combs (OFCs), regular optical de-muxes, and I/Q demodulators is analyzed and experimentally ...
Xiaojun Xie, Yitang Dai, Kun Xu, Jian Niu, Ruixin Wang, Li Yan, Jintong Lin   +6 more
doaj   +1 more source

Improving the Robustness of Visual Teach‐and‐Repeat Navigation Using Drift Error Correction and Event‐Based Vision for Low‐Light Environments

Advanced Robotics Research, EarlyView.
Visual teach‐and‐repeat (VTR) navigation allows robots to learn and follow routes without building a full metric map. We show that navigation accuracy for VTR can be improved by integrating a topological map with error‐drift correction based on stereo vision.
Fuhai Ling, Ze Huang, Tony J. Prescott
wiley   +1 more source

High-Speed Short Reach Optical Communications : Technological Options and Challenges

, 2020
We review the current trend in the research and development of short reach optical communications. Typical application scenarios with corresponding technological options are discussed, and an outlook on the challenges from different aspects are presented.
Udalcovs, Aleksejs,, Pang, Xiaodan,, Schatz, Richard,, Popov, Sergei,, Ozolins, Oskars,   +4 more
core  

Subwavelength Energy Transport Along a Dielectric Nanoparticle Chain in a Metal Slot

IEEE Photonics Journal, 2013
Subwavelength energy transportation along a dielectric nanoparticle chain in a metal slot is investigated. It is demonstrated that subwavelength resonance modes with nanoscale confinement could be well achieved in the proposed waveguide, free from the ...
Bing Shen, Yongqing Huang, Xiaofeng Duan, Xiaomin Ren, Xia Zhang, Qi Wang   +5 more
doaj   +1 more source

Metasurface-driven polarization-division multiplexing of PCSEL for optical communications. [PDF]

Discov Nano, 2023
Miao WC, Chang CH, Hsiao FH, Chang YH, Huang JH, Su HT, Lin CY, Lin CL, Chow CW, Hong YH, Huang YW, Kuo HC.   +11 more
europepmc   +1 more source

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