Search Results - "James, Stephen W."

Tapered Optical Fibre Sensors: Current Trends and Future Perspectives by Korposh, Sergiy, James, Stephen W, Lee, Seung-Woo, Tatam, Ralph P

“…The development of reliable, affordable and efficient sensors is a key step in providing tools for efficient monitoring of critical environmental parameters…”
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Dynamic Fiber-Optic Shape Sensing Using Fiber Segment Interferometry by Kissinger, Thomas, Chehura, Edmond, Staines, Stephen E., James, Stephen W., Tatam, Ralph P.

“…Dynamic fiber-optic shape sensing, often also referred to as curvature or bend sensing, is demonstrated using fiber segment interferometry, where chains of…”
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[INVITED] Porphyrin-nanoassembled fiber-optic gas sensor fabrication: Optimization of parameters for sensitive ammonia gas detection by Korposh, Sergiy, Kodaira, Suguru, Selyanchyn, Roman, Ledezma, Francisco H., James, Stephen W., Lee, Seung-Woo

“…•Highly sensitive evanescent wave fiber-optic ammonia gas sensors were fabricated.•The sensitivity to ammonia was linear in the concentration range of…”
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Volatile Organic Compounds Sensing Using Optical Fibre Long Period Grating with Mesoporous Nano-Scale Coating by Hromadka, Jiri, Korposh, Sergiy, Partridge, Matthew, James, Stephen W, Davis, Frank, Crump, Derrick, Tatam, Ralph P

“…A long period grating (LPG) modified with a mesoporous film infused with a calixarene as a functional compound was employed for the detection of individual…”
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Properties of Length-Apodized Phase-Shifted LPGs Operating at the Phase Matching Turning Point by James, S. W., Topliss, S. M., Tatam, R. P.

“…The characteristics of length-apodized phase-shifted fiber optic long period gratings with full and partial nanostructured coatings have been explored…”
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Multiplexing of Fiber-Optic Long-Period Grating-Based Interferometric Sensors by Murphy, R.P., James, S.W., Tatam, R.P.

“…Two long-period gratings (LPGs) fabricated in series in an optical fiber form a Mach-Zehnder interferometer, producing a sinusoidal channelled spectrum within…”
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An ammonia sensor based on Lossy Mode Resonances on a tapered optical fibre coated with porphyrin-incorporated titanium dioxide by Tiwari, Divya, Mullaney, Kevin, Korposh, Serhiy, James, Stephen W., Lee, Seung-Woo, Tatam, Ralph P.

“…•Generation of Lossy Mode Resonances (LMRs) by the deposition of a nanoscale coating of titanium dioxide, incorporating a porphyrin as a functional compound,…”
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Multi-parameter measurements using optical fibre long period gratings for indoor air quality monitoring by Hromadka, Jiri, Korposh, Sergiy, Partridge, Matthew C., James, Stephen W., Davis, Frank, Crump, Derrick, Tatam, Ralph P.

“…•The use of wavelength-division multiplexed Long Period Gratings to measure three different parameters.•The use of coating thickness to bias the central…”
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A long period grating optical fiber sensor with nano-assembled porphyrin layers for detecting ammonia gas by Wang, Tao, Yasukochi, Wataru, Korposh, Sergiy, James, Stephen W., Tatam, Ralph P., Lee, Seung-Woo

“…In this study, the ability of a long period grating (LPG) optical fiber sensor coated with a multilayer film of poly(diallyldimethyammonium chloride) (PDDA)…”
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High sensitivity pressure measurement using optical fibre sensors mounted on a composite diaphragm by Aime, Laura F J, Kissinger, Thomas, James, Stephen W, Chehura, Edmon, Verzeletti, Alberto, Tatam, Ralph P

“…A pressure sensor specified for aerodynamic applications and based on optical fibre strain sensors mounted on a circular glass fibre reinforced polymer…”
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A long period grating-based chemical sensor insensitive to the influence of interfering parameters by James, Stephen W, Korposh, Serhiy, Lee, Seung-Woo, Tatam, Ralph P

“…An optical fibre chemical sensor that is insensitive to interfering parameters including temperature and surrounding refractive index is described. The sensor…”
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Selective vancomycin detection using optical fibre long period gratings functionalised with molecularly imprinted polymer nanoparticles by Korposh, Sergiy, Chianella, Iva, Guerreiro, Antonio, Caygill, Sarah, Piletsky, Sergey, James, Stephen W, Tatam, Ralph P

“…An optical fibre long period grating (LPG) sensor modified with molecularly imprinted polymer nanoparticles (nanoMIPs) for the specific detection of…”
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Overwrite fabrication and tuning of long period gratings by Partridge, Matthew, James, Stephen W, Barrington, James, Tatam, Ralph P

“…The central wavelengths of the resonance bands are critical aspect of the performance of long period gratings (LPGs) as sensors, particularly for devices…”
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Temperature and strain discrimination using a single tilted fibre Bragg grating by Chehura, Edmon, James, Stephen W., Tatam, Ralph P.

“…A fibre optic sensor capable of discriminating between temperature and strain, using a single fibre Bragg grating, is presented. The technique exploits the…”
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Long period grating based toluene sensor for use with water contamination by Partridge, Matthew, Wong, Rebecca, James, Stephen W., Davis, Frank, Higson, Séamus P.J., Tatam, Ralph P.

“…•Demonstration of a working toluene contamination sensor for use in the detection of water contamination.•Experimental work showing a limit of detection of…”
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Optimized Process for Fabricating Ultrashort Tapered Long-Period Gratings by Mullaney, Kevin, Staines, Stephen E., James, Stephen W., Tatam, Ralph P.

“…The CO2 laser based fabrication of tapered long period gratings (TLPGs) is optimized so that their transmission spectra are comparable with those made using…”
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Monitoring techniques for the manufacture of tapered optical fibers by Mullaney, Kevin, Correia, Ricardo, Staines, Stephen E, James, Stephen W, Tatam, Ralph P

“…The use of a range of optical techniques to monitor the process of fabricating optical fiber tapers is investigated. Thermal imaging was used to optimize the…”
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Fiber optic long period grating sensors with a nanoassembled mesoporous film of SiO2 nanoparticles by Korposh, Sergiy, James, Stephen W, Lee, Seung-Woo, Topliss, Stephen, Cheung, Sammy C, Batty, William J, Tatam, Ralph P

“…A novel approach to chemical application of long period grating (LPG) optical fibers was demonstrated, which were modified with a film nanoassembled by the…”
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Optical Fiber Bragg Grating Based Pressure Sensor Using a Composite Diaphragm For Pressure Measurements by Aime, Laura F J, Verzeletti, Alberto, James, Stephen W, Tatam, Ralph P

“…The development of an optical fiber based pressure sensor, created using a Fiber Bragg Grating (FBG) and a glass fiber reinforced polymer membrane for use in…”
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Multiplexing curvature sensors using fibre segment interferometry for lateral vibration measurements by Kissinger, Thomas, Chehura, Edmon, James, Stephen W., Tatam, Ralph P.

“…Dynamic fibre-optic curvature sensing is demonstrated by interrogating chains of fibre segments, separated by broadband Bragg grating reflectors, using…”
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