Optical fiber evanescent-wave sensing technology of hydrogen sulfide gas concentration in oil and gas fields
Sign Up to like & getrecommendations! Published in 2018 at "Optik"
DOI: 10.1016/j.ijleo.2017.11.130
Abstract: Abstract For the problems of light source fluctuation noises, zero drift and other problems of H 2 S gas concentration sensor in optic-fiber evanescent-wave absorption spectroscopy, double-light-path absorption system was designed to theoretically analyze the… read more here.
Keywords: fiber evanescent; gas concentration; gas; evanescent wave ... See more keywords
Peculiarities of the mid-infrared evanescent wave spectroscopy based on multimode chalcogenide fibers
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Non-crystalline Solids"
DOI: 10.1016/j.jnoncrysol.2017.08.027
Abstract: Abstract Output characteristics of the evanescent wave sensor have been studied in experiment by measurement of the transmittance of a chalcogenide fiber submerged into an aqueous solution of acetone in the range of wavelengths 5–9 μm.… read more here.
Keywords: chalcogenide; evanescent wave; peculiarities mid; mid infrared ... See more keywords
Enhancement in performance of an evanescent wave fiber optic sensor in the near-infrared region by graphene’s chemical potential
Sign Up to like & getrecommendations! Published in 2018 at "Photonics and Nanostructures - Fundamentals and Applications"
DOI: 10.1016/j.photonics.2018.06.012
Abstract: Abstract An intensity interrogation-based fiber optic evanescent wave sensor with graphene monolayer is simulated and analyzed in the near-infrared spectral region. Chalcogenide glasses are considered as fiber’s core and clad materials. Dispersion relations of normal… read more here.
Keywords: evanescent wave; near infrared; graphene chemical; fiber optic ... See more keywords
'Rough guide' evanescent wave optrode for colorimetric metalloporphyrine sensors.
Sign Up to like & getrecommendations! Published in 2017 at "Talanta"
DOI: 10.1016/j.talanta.2016.11.057
Abstract: When films of zinc 5-(4-carboxyphenyl),10,15,20-triphenyl porphyrin (ZnTPP) are exposed to waterborne amine in pH- neutral or alkaline media, both Q- band and Soret band respond with a change of absorbance due to the donation of… read more here.
Keywords: rough guide; evanescent wave; guide evanescent; band ... See more keywords
Graphene based chalcogenide fiber-optic evanescent wave sensor for detection of hemoglobin in human blood
Sign Up to like & getrecommendations! Published in 2018 at "Optical Fiber Technology"
DOI: 10.1016/j.yofte.2018.01.012
Abstract: Abstract Fiber optic evanescent wave sensor with graphene as an absorption-enhancing layer to measure hemoglobin concentration in human blood is proposed. Previous modal functions and experimental results describing the variation of optical constants of human… read more here.
Keywords: detection; evanescent wave; human blood; fiber ... See more keywords
A prototype evanescent wave-coupled cavity ring-down spectrometer for probing real-time aggregation kinetics of gold and silver nanoparticles.
Sign Up to like & getrecommendations! Published in 2020 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.9b05521
Abstract: We report on the development of a simple, linear optical cavity-based system combining evanescent wave (EW) with high-sensitive cavity ring-down spectroscopy (CRDS) technique using a diode laser at 644 nm and a right-angled prism for… read more here.
Keywords: aggregation; kinetics gold; evanescent wave; cavity ... See more keywords
Nucleic acid functionalized fiber optic probes for sensing in evanescent wave: optimization and application
Sign Up to like & getrecommendations! Published in 2019 at "RSC Advances"
DOI: 10.1039/c8ra10125f
Abstract: Reliable DNA-functionalized optic probes for sensing in evanescent wave have been developed based a series of optimizations on the etching solution and immobilization chemistry. read more here.
Keywords: probes sensing; nucleic acid; evanescent wave; optic probes ... See more keywords
Characterization and differentiation of the adsorption behavior of crystal violet and methylene blue at the silica/water interface using near field evanescent wave.
Sign Up to like & getrecommendations! Published in 2018 at "Soft matter"
DOI: 10.1039/c8sm01385c
Abstract: Different molecular structures lead to different adsorption performances. In this work, the adsorption behavior of two organic dyes, namely, crystal violet (CV, triphenylmethane dye of symmetric structure) and methylene blue (MB, azo dye of linear… read more here.
Keywords: adsorption; water interface; evanescent wave; silica water ... See more keywords
Butt-joint regrowth method by MOCVD for integration of evanescent wave coupled photodetector and multi-quantum well semiconductor optical amplifier
Sign Up to like & getrecommendations! Published in 2022 at "Chinese Physics B"
DOI: 10.1088/1674-1056/ac272b
Abstract: We have realized integration of evanescent wave coupled photodetector (ECPD) and multi-quantum well (MQW) semiconductor optical amplifier (SOA) on MOCVD platform by investigating butt-joint regrowth method of thick InP/InGaAsP waveguides to deep etched SOA mesas.… read more here.
Keywords: evanescent wave; wave coupled; regrowth; method ... See more keywords
Influence of evanescent wave on birefringent microplates.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.002299
Abstract: Mechanical action caused by the optical forces connected with the canonical momentum density associated with the local wavevector or Belinfante's spin angular momentum is experimentally verified. The helicity-dependent and the helicity-independent forces determined by spin… read more here.
Keywords: birefringent; evanescent wave; helicity independent; wave ... See more keywords
Fast evanescent wave spectroscopy in the long wave infrared
Sign Up to like & getrecommendations! Published in 2017 at "Optics Express"
DOI: 10.1364/oe.25.033497
Abstract: We report evanescent wave long wave infrared (LWIR) spectroscopy on a microsecond wavelength switching time scale using the recently developed acousto-optic modulator (AOM) tuned quantum cascade laser. We have examined several liquids to demonstrate the… read more here.
Keywords: evanescent wave; wave spectroscopy; fast evanescent; long wave ... See more keywords