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Matthew Partridge
Cranfield University
OpticsMaterials scienceOptical fiberGratingMonolayer
28Publications
7H-index
116Citations
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Publications 28
Newest
#1James H. Barrington (Cranfield University)H-Index: 3
#2Matthew Partridge (Cranfield University)H-Index: 7
Last. Ralph P. Tatam (Cranfield University)H-Index: 33
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Abstract Long period gratings (LPGs) as a sensing platform have the potential for multi-parameter measurement through the utilization of 2nd order coupling resonance bands. Although the current literature has produced LPGs with 2nd order resonance bands, the fabrication parameters required to generate these features have not been elucidated. Here, using UV irradiation via the point-by-point method, it is shown that by varying the duty cycle it is possible to fabricate LPGs that exhibit 2nd, 3rd,...
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#2Matthew PartridgeH-Index: 7
Last. Ralph P. TatamH-Index: 33
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#1Sergiy Korposh (Cranfield University)H-Index: 13
#2Stephen W. James (Cranfield University)H-Index: 29
Last. Ralph P. Tatam (Cranfield University)H-Index: 33
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• All-optical switching using an optical fibre LPG with bacteriorhodopsin (bR) is demonstrated.
1 CitationsSource
#1Jason E. McDermott (PNNL: Pacific Northwest National Laboratory)H-Index: 31
#2Matthew Partridge (Cranfield University)H-Index: 7
Last. Yana Bromberg (TUM: Technische Universität München)H-Index: 21
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3 CitationsSource
Oct 1, 2017 in SENSORS (IEEE Sensors)
#1A. Rendon Romero (Cranfield University)
#2Noor Azlina Masdor (Cranfield University)H-Index: 2
Last. Ralph P. Tatam (Cranfield University)H-Index: 33
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The detection of Campylobacter jejuni by sensitising the surface of an optical fibre long period grating (LPG) with a covalently attached rabbit polyclonal antibody is explored. Previous reports have exploited the use bacteriophages as recognition elements for bacterial detection, while antibodies have been used to detect biochemical interactions. However, to date the use of antibodies for bacterial detection has not been explored widely. It is shown that it is possible to detect bacteria using ...
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#1Ignacio Del VillarH-Index: 16
#2Matthew PartridgeH-Index: 7
Last. Ralph P. TatamH-Index: 33
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The diameter of long-period fiber gratings (LPFGs) fabricated in optical fibers with a low cutoff wavelength was be reduced by hydrofluoric acid etching, enhancing the sensitivity to refractive index by more than a factor of 3, to 2611 nm/refractive index unit in the range from 1.333 to 1.4278. The grating period selected for the LPFGs allowed access to the dispersion turning point at wavelengths close to the visible range of the optical spectrum, where optical equipment is less expensive. As an...
8 CitationsSource
1 CitationsSource
#1Jiri Hromadka (Charles University in Prague)H-Index: 6
#2Sergiy Korposh (Cranfield University)H-Index: 13
Last. Ralph P. Tatam (Cranfield University)H-Index: 33
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Abstract An array of three long period gratings (LPGs) fabricated in a single optical fibre and multiplexed in the wavelength domain was used to measure simultaneously temperature, relative humidity (RH) and volatile organic compounds (VOCs), which are key indoor air quality (IAQ) indicators. Each LPG sensor was designed with optimised response to a particular measurand. The first, with no surface modification, was used to measure temperature. The second, modified by a mesoporous coating of sili...
35 CitationsSource
#1Jiri Hromadka (University of Nottingham)H-Index: 6
#2Serhiy Korposh (University of Nottingham)H-Index: 7
Last. Ralph P. Tatam (Cranfield University)H-Index: 33
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An array of three long period gratings (LPGs) fabricated in a single optical fibre and multiplexed in the wavelength domain was used to measure simultaneously temperature, relative humidity (RH) and volatile organic compounds (VOCs). Each LPG sensor was designed to optimize its response to a desired measurand. The LPGs were fabricated with periods such that they operated at or near the phase matching turning point. The sensors were calibrated in the laboratory and the simultaneous measurement of...
26 CitationsSource
#1J. S. Hallett (Cranfield University)H-Index: 1
#2Matthew Partridge (Cranfield University)H-Index: 7
Last. Ralph P. Tatam (Cranfield University)H-Index: 33
view all 7 authors...
The use of an optical fibre long period grating (LPG) as a soil moisture sensor is reported. Characterization of the device in both clay and sandy soils revealed a sensitivity to moisture levels in the range 10–50%, and the results were compared with the output from a Theta probe, the standard soil moisture sensor, which measures the impedance of the soil.
1 CitationsSource
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