Results 141 to 150 of about 11,192,233 (306)

Heterogeneous Integration of Multi‐Band Mode‐Locked and Single‐Mode Lasers on an Extended Commercial SiN Platform

open access: yesLaser &Photonics Reviews, EarlyView.
Micro‐transfer printing enables GaAs and InP gain materials to be integrated on a commercial silicon nitride photonic platform. The resulting chip supports O‐ and C‐band comb and single‐mode lasers, demonstrating a scalable route toward multi‐material, multi‐wavelength, and multifunctional integrated light sources.
Dongbo Wang   +12 more
wiley   +1 more source

Scientometric Analysis and Research Trends in Optical Fiber Grating Sensors: A Review

open access: yesPhotonics
The increasing demand for high-precision, real-time sensing in various fields has spurred the development of optical fiber grating sensors (OFGSs). This study reviews the research field of OFGSs, exploring their historical development, current trends ...
Yiqiang Deng, Wen Ren, Xiaoyan Wang
doaj   +1 more source

Within‐tree spatial heterogeneity of sap flow velocities and wood properties and its effect on the uncertainty of tree level sap flux estimates

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
As forests are important for biodiversity and recreation and provide vital resources globally, it is essential that their health can be accurately monitored, for example, by using sap flow probes to measure tree water uptake. We investigated whether sap flow measurements might differ at various locations within the same tree due to variation in wood ...
Stefan Seeger   +2 more
wiley   +1 more source

POLARIMETRY OF LONG-PERIOD FIBER GRATINGS

open access: yes, 2014
"In this thesis, an overview of long-period fiber gratings, including theoretical background, fabrication techniques and their applications are presented to explain fiber gratings properties, behavior and the importance of their characterization.
openaire   +1 more source

Construction optimization and functional applications of fluorescent nanodiamonds

open access: yesResponsive Materials, EarlyView.
This review summarizes synthesis, surface modification and optical properties of fluorescent nanodiamonds. Their advances in quantum sensing, single‐photon emission and biomedicine are discussed, and existing challenges and future directions are presented.
Yunpeng Yang   +11 more
wiley   +1 more source

Safeguarding the Photoluminescence of Silver Sulfide Nanocrystals in Biological Environments via Silica Shielding

open access: yesSmall, EarlyView.
Interactions with biomolecules can alter the photoluminescence of Ag2S nanocrystals, undermining near‐infrared imaging and thermometry. Incorporation into dendritic silica minimizes these interactions and preserves emission intensity, spectral response, and lifetime in plasma and whole blood. This shielding enables more reliable imaging and temperature
Alejandro Hernández Medel   +11 more
wiley   +1 more source

Long-Period Fiber Grating Sensor Based on a Conductive Polymer Functional Layer. [PDF]

open access: yesPolymers (Basel), 2020
Hsu CY   +6 more
europepmc   +1 more source

Real-time spectral dynamics of Kerr-effect all-optical switching in long-period fiber gratings [PDF]

open access: gold
Emmanuel Rivera-Perez   +5 more
openalex   +1 more source

Strong ground motion and structural damage in the 2023 Kahramanmaraş earthquakes: A comparative case study of numerical predictions and field observations

open access: yesStructural Concrete, EarlyView.
Abstract On February 6, 2023, southeastern Türkiye was struck by two catastrophic earthquakes (Mw: 7.7 and Mw: 7.6) along the East Anatolian Fault Zone, causing extensive structural failures and significant loss of life. This study evaluates the seismotectonic characteristics of the sequence, analyzes strong ground motion data against the Turkish ...
Saruhan Kartal   +2 more
wiley   +1 more source

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