Results 181 to 190 of about 2,584,379 (263)

Problems of few-mode transmission realization at multimode optical fibers of telecommunications lines

open access: green, 2015
Vladimir A. Andreev   +5 more
openalex   +1 more source

Optimized reconstruction of the absorption spectra of kidney tissues from the spectra of tissue components using the least squares method

open access: yesJournal of Biophotonics, EarlyView.
The absorption coefficient spectra of healthy and cancerous kidney tissues were reconstructed from the absorption spectra of tissue components using constant weights. Both reconstructions allowed to calculate the concentrations of the tissue components and a comparison between the healthy and chromophobe renal cell carcinoma kidney showed an increase ...
Maria R. Pinheiro   +7 more
wiley   +1 more source

Optical method supported by machine learning for dynamics of C‐reactive protein concentrations changes detection in biological matrix samples

open access: yesJournal of Biophotonics, EarlyView.
The proposed method is based on an optical system supported by machine learning, that allows to monitoring dynamic of C‐reactive protein (CRP) level changes in near‐real time. Monitoring the presence level of CRP in wastewater might be used to track the spread of diseases or identify areas with increased morbidity.
Patryk Sokołowski   +6 more
wiley   +1 more source

When Does Top Management Team Diversity Matter in Large Organizations?

open access: yesJournal of Organizational Behavior, EarlyView.
ABSTRACT Top management teams (TMTs) drive strategic leadership, but there is little clarity on when the composition of these upper echelons most impacts organization performance. Drawing from the categorization‐elaboration model, we study an 18‐year sample of approximately 4500 organizations and over 32 000 executives and find a positive relationship ...
Frances Fabian   +2 more
wiley   +1 more source

Ultra‐Compact Broadband Spot Size Converter Using Metamaterial Cell‐Based Inverse Design

open access: yesLaser &Photonics Reviews, EarlyView.
Inverse design techniques are combined with subwavelength structures to design a compact, high‐performance spot size converter. A cell‐based topology is proposed, where each cell is composed of an equivalent homogenous metamaterial, resulting in a reduced parameter that speeds up optimization. A 7 μm$\mu{\rm m}$‐long device that achieves a 24‐fold beam
Alejandro Sánchez‐Sánchez   +6 more
wiley   +1 more source

Mid‐Infrared Integrated Photonics: Material Platforms and Emerging Applications

open access: yesLaser &Photonics Reviews, EarlyView.
Mid‐infrared (MIR) integrated photonics enables advanced chemical and biological sensing through the unique absorption features of molecules in the 2–20 µm range. This review highlights recent material advances such as chalcogenide glasses, silicon, and graphene and explores MIR applications in environmental monitoring, medical diagnostics ...
Muhammad Ali Butt   +2 more
wiley   +1 more source

Cylindrical Vector Beam Multiplexing based on All‐Dielectric Fiber Meta‐Tips Enabling High‐Capacity Bidirectional Optical Communication

open access: yesLaser &Photonics Reviews, EarlyView.
Cylindrical vector beam (CVB) multiplexing offers a viable solution to channel capacity, integration, and unidirectional transmission challenges in fiber‐rich sixth‐generation backbone networks. An all‐dielectric fiber meta‐tip‐enabled CVB multiplexing system is proposed and demonstrated, providing high‐capacity, bidirectional optical interconnects and
Jinke Li   +3 more
wiley   +1 more source

Monolithic Silicon Photonic Transceiver for 160 km Multi‐Channel Quantum Entanglement Distribution in Fiber Network

open access: yesLaser &Photonics Reviews, EarlyView.
The paper demonstrates a chip scale (4.5 x 4.5 mm2) silicon integrated system that is capable of distributing entangled photons over 160 km single mode fibers without dispersion compensations and external optical filters. The results highlight the potential for massive production and large‐scale deployed quantum integrated circuits for a future ...
Yue Qin, Hongnan Xu, Hon Ki Tsang
wiley   +1 more source

Tunable Topological Directional Supercoupler and Applications in THz On‐Chip Communication

open access: yesLaser &Photonics Reviews, EarlyView.
A topological directional supercoupler is demonstrated, enabling dual‐channel 50 Gbps on‐chip terahertz communication with phototunable power splitting ratios. The achieved sub‐wavelength scale coupling area, sharp waveguide bends, and momentum‐conserved coupling process allow for ultra‐compact and efficient terahertz topological photonic integrated ...
Ridong Jia   +9 more
wiley   +1 more source

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