Results 121 to 130 of about 67,680 (348)

Optofluidic Raman Analysis and Capacity Recovery in Li‐ion Cells

Advanced Materials Technologies, EarlyView.
Operando Raman spectroscopy is used to monitor the degradation of commercial Li‐ion cells. Using a microfluidic access port, small amounts of electrolyte are sampled into a hollow‐core optical fibre, where fibre‐enhanced Raman analysis reveals Li+ solvation changes and solvent evolution.
Ermanno Miele, Wesley M. Dose, Ian A. K. Davidson, Hesham Sakr, Natalie V. Wheeler, Francesco Poletti, Michael De Volder, Clare P. Grey, Jeremy J. Baumberg, Tijmen G. Euser   +9 more
wiley   +1 more source

Decoupling the Effects of Temperature, Strain, and Refractive Index in Long-Period Fiber Grating Used for Epoxy Resin Cure Monitoring

Sensors
Epoxy resins are widely used in the manufacture of composite materials for a wide range of applications. Control of the curing process is an important consideration in ensuring product quality and minimizing production times. The curing of epoxy resin is
Oleg V. Ivanov, Kaushal Bhavsar, James M. Gilbert   +2 more
doaj   +1 more source

Arrays of Regenerated Fiber Bragg Gratings in Non-Hydrogen-Loaded Photosensitive Fibers for High-Temperature Sensor Networks

Sensors, 2009
We report about the possibility of using regenerated fiber Bragg gratings generated in photosensitive fibers without applying hydrogen loading for high temperature sensor networks.
Hartmut Bartelt, Johan Vlekken, Martin Becker, Christoph Chojetztki, Manfred Rothhardt, Sven Brueckner, Eric Lindner   +6 more
doaj   +1 more source

Gap solitons in Bragg gratings with a harmonic superlattice

, 2006
Solitons are studied in a model of a fiber Bragg grating (BG) whose local reflectivity is subjected to periodic modulation. The superlattice opens an infinite number of new bandgaps in the model's spectrum.
A. R Champneys, B. A Malomed, Baizakov B. B., De Sterke C. M., Doedel E. J., Eggleton B. J., Guckenheimer J., I. M Merhasin, K Yagasaki, Kashyap R., Sakaguchi H., Sakaguchi H., Slusher R. E., Smith P., T Wagenknecht   +14 more
core   +1 more source

Magnetic Field Sensor Based on a Tri-Microfiber Coupler Ring in Magnetic Fluid and a Fiber Bragg Grating [PDF]

, 2019
Fangfang Wei, Dejun Liu, Arun Kumar Mallik, Gerald Farrel, Qiang Wu, Gang‐Ding Peng, Yuliya Semenova   +6 more
openalex   +1 more source

Terahertz Chiral Metamaterials Enabling Broadband Polarization Conversion Using Polarization Guiding Effect

Advanced Materials Technologies, EarlyView.
A broadband terahertz polarization rotator consisting of twistingly stacked silicon–air metagratings is designed based on the polarization guiding effect and experimentally shown to achieve 90° linear polarization rotation for both TE and TM incidences.
Yun‐Seok Choi, Tae Gwan Park, Antoinette J. Taylor, Hou‐Tong Chen, Abul K. Azad   +4 more
wiley   +1 more source

Novel Fabrication Technique of Superimposed LPG with Different Grating Pitches for the Simultaneous Detection of Refractive Index and Temperature

Proceedings, 2019
Optical fiber sensors based on in-fiber Long Period Gratings (LPG) have attracted considerableinterest in the context of environmental, chemical and biochemical sensing. [...]
Cosimo Trono, Federico Valeri, Francesco Baldini   +2 more
doaj   +1 more source

Space-division multiplexing for fiber-wireless communications

, 2018
We envision the application of optical Space-division Multiplexing (SDM) to the next generation fiber-wireless communications as a firm candidate to increase the end user capacity and provide adaptive radiofrequency-photonic interfaces.
Barrera, David, Garcia, Sergi, Gasulla, Ivana, Hervas, Javier, Sales, Salvador   +4 more
core   +1 more source

Liquid Metal‐Based Stretchable Strain Sensor for Fruit Growth Monitoring

Advanced Materials Technologies, EarlyView.
Schematic overview of the fruit growth sensor development workflow, including sensor fabrication by injection molding, electromechanical and environmental characterization, mechanical stability testing, electronic readout integration, and outdoor field validation for monitoring of fruit growth under practical orchard conditions.
Asad Ullah, Lennert Purnal, Maximilian Krack, Sander Vijgen, Thijs Vandenryt, Dieter Reenaers, Ronald Thoelen, Wim Deferme   +7 more
wiley   +1 more source

Arc-Induced Long-Period Fiber Gratings at INESC TEC. Part II: Properties and Applications in Optical Communications and Sensing. [PDF]

Sensors (Basel), 2021
Rego G, Caldas P, Ivanov OV.
europepmc   +1 more source