The Experts below are selected from a list of 11505 Experts worldwide ranked by ideXlab platform
Steven T Boles - One of the best experts on this subject based on the ideXlab platform.
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Ultra-fast polymer optical fibre Bragg gratIng Inscription for medical devices
Light: Science & Applications, 2018Co-Authors: Julien Bonefacino, Jian Wang, Tom S Glen, Xin Cheng, Steven T BolesAbstract:Bragg gratIngs have been written Into polymer optical fibres In a few milliseconds, thanks to the use of a new dopant In the fibres’ cores. Fibre Bragg gratIngs can be quickly Inscribed In silica optical fibres, but it takes much longer to Inscribe gratIngs In polymethyl methacrylate (PMMA) fibres. Julien BonefacIno and co-workers from the Hong Kong Polytechnic University solved this problem by addIng diphenyl disulphide to both raise the refractive Index of the fibres’ cores and make them highly photosensitive. UsIng low-fluence ultraviolet light from a helium–cadmium laser, Bragg gratIngs could be Inscribed In only 7 milliseconds—about 140 times faster than previously reported Inscription times and short enough to make the scheme potentially compatible with fabrication durIng fibre drawIng. The gratIngs are promisIng for use In sensIng applications, such as measurIng heartbeat and respiration. We report the extraordInary result of rapid fibre Bragg gratIng Inscription In doped polymer optical fibres based on polymethyl methacrylate In only 7 ms, which is two orders of magnitude faster than the Inscription times previously reported. This was achieved usIng a new dopant material, diphenyl disulphide, which was found to enable a fast, positive refractive Index change usIng a low ultraviolet dose. These changes were Investigated and found to arise from photodissociation of the diphenyl disulphide molecule and subsequent molecular reorganization. We demonstrate that gratIngs Inscribed In these fibres can exhibit at least a 15 times higher sensitivity than silica glass fibre, despite their quick Inscription times. As a demonstration of the sensitivity, we selected a highly strIngent situation, namely, the monitorIng of a human heartbeat and respiratory functions. These fIndIngs could permit the Inscription of fibre Bragg gratIngs durIng the fibre drawIng process for mass production, allowIng cost-effective, sIngle-use, In Vivo Sensors among other potential uses.
Julien Bonefacino - One of the best experts on this subject based on the ideXlab platform.
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Ultra-fast polymer optical fibre Bragg gratIng Inscription for medical devices
Light: Science & Applications, 2018Co-Authors: Julien Bonefacino, Jian Wang, Tom S Glen, Xin Cheng, Steven T BolesAbstract:Bragg gratIngs have been written Into polymer optical fibres In a few milliseconds, thanks to the use of a new dopant In the fibres’ cores. Fibre Bragg gratIngs can be quickly Inscribed In silica optical fibres, but it takes much longer to Inscribe gratIngs In polymethyl methacrylate (PMMA) fibres. Julien BonefacIno and co-workers from the Hong Kong Polytechnic University solved this problem by addIng diphenyl disulphide to both raise the refractive Index of the fibres’ cores and make them highly photosensitive. UsIng low-fluence ultraviolet light from a helium–cadmium laser, Bragg gratIngs could be Inscribed In only 7 milliseconds—about 140 times faster than previously reported Inscription times and short enough to make the scheme potentially compatible with fabrication durIng fibre drawIng. The gratIngs are promisIng for use In sensIng applications, such as measurIng heartbeat and respiration. We report the extraordInary result of rapid fibre Bragg gratIng Inscription In doped polymer optical fibres based on polymethyl methacrylate In only 7 ms, which is two orders of magnitude faster than the Inscription times previously reported. This was achieved usIng a new dopant material, diphenyl disulphide, which was found to enable a fast, positive refractive Index change usIng a low ultraviolet dose. These changes were Investigated and found to arise from photodissociation of the diphenyl disulphide molecule and subsequent molecular reorganization. We demonstrate that gratIngs Inscribed In these fibres can exhibit at least a 15 times higher sensitivity than silica glass fibre, despite their quick Inscription times. As a demonstration of the sensitivity, we selected a highly strIngent situation, namely, the monitorIng of a human heartbeat and respiratory functions. These fIndIngs could permit the Inscription of fibre Bragg gratIngs durIng the fibre drawIng process for mass production, allowIng cost-effective, sIngle-use, In Vivo Sensors among other potential uses.
Xin Cheng - One of the best experts on this subject based on the ideXlab platform.
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Ultra-fast polymer optical fibre Bragg gratIng Inscription for medical devices
Light: Science & Applications, 2018Co-Authors: Julien Bonefacino, Jian Wang, Tom S Glen, Xin Cheng, Steven T BolesAbstract:Bragg gratIngs have been written Into polymer optical fibres In a few milliseconds, thanks to the use of a new dopant In the fibres’ cores. Fibre Bragg gratIngs can be quickly Inscribed In silica optical fibres, but it takes much longer to Inscribe gratIngs In polymethyl methacrylate (PMMA) fibres. Julien BonefacIno and co-workers from the Hong Kong Polytechnic University solved this problem by addIng diphenyl disulphide to both raise the refractive Index of the fibres’ cores and make them highly photosensitive. UsIng low-fluence ultraviolet light from a helium–cadmium laser, Bragg gratIngs could be Inscribed In only 7 milliseconds—about 140 times faster than previously reported Inscription times and short enough to make the scheme potentially compatible with fabrication durIng fibre drawIng. The gratIngs are promisIng for use In sensIng applications, such as measurIng heartbeat and respiration. We report the extraordInary result of rapid fibre Bragg gratIng Inscription In doped polymer optical fibres based on polymethyl methacrylate In only 7 ms, which is two orders of magnitude faster than the Inscription times previously reported. This was achieved usIng a new dopant material, diphenyl disulphide, which was found to enable a fast, positive refractive Index change usIng a low ultraviolet dose. These changes were Investigated and found to arise from photodissociation of the diphenyl disulphide molecule and subsequent molecular reorganization. We demonstrate that gratIngs Inscribed In these fibres can exhibit at least a 15 times higher sensitivity than silica glass fibre, despite their quick Inscription times. As a demonstration of the sensitivity, we selected a highly strIngent situation, namely, the monitorIng of a human heartbeat and respiratory functions. These fIndIngs could permit the Inscription of fibre Bragg gratIngs durIng the fibre drawIng process for mass production, allowIng cost-effective, sIngle-use, In Vivo Sensors among other potential uses.
Jian Wang - One of the best experts on this subject based on the ideXlab platform.
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Ultra-fast polymer optical fibre Bragg gratIng Inscription for medical devices
Light: Science & Applications, 2018Co-Authors: Julien Bonefacino, Jian Wang, Tom S Glen, Xin Cheng, Steven T BolesAbstract:Bragg gratIngs have been written Into polymer optical fibres In a few milliseconds, thanks to the use of a new dopant In the fibres’ cores. Fibre Bragg gratIngs can be quickly Inscribed In silica optical fibres, but it takes much longer to Inscribe gratIngs In polymethyl methacrylate (PMMA) fibres. Julien BonefacIno and co-workers from the Hong Kong Polytechnic University solved this problem by addIng diphenyl disulphide to both raise the refractive Index of the fibres’ cores and make them highly photosensitive. UsIng low-fluence ultraviolet light from a helium–cadmium laser, Bragg gratIngs could be Inscribed In only 7 milliseconds—about 140 times faster than previously reported Inscription times and short enough to make the scheme potentially compatible with fabrication durIng fibre drawIng. The gratIngs are promisIng for use In sensIng applications, such as measurIng heartbeat and respiration. We report the extraordInary result of rapid fibre Bragg gratIng Inscription In doped polymer optical fibres based on polymethyl methacrylate In only 7 ms, which is two orders of magnitude faster than the Inscription times previously reported. This was achieved usIng a new dopant material, diphenyl disulphide, which was found to enable a fast, positive refractive Index change usIng a low ultraviolet dose. These changes were Investigated and found to arise from photodissociation of the diphenyl disulphide molecule and subsequent molecular reorganization. We demonstrate that gratIngs Inscribed In these fibres can exhibit at least a 15 times higher sensitivity than silica glass fibre, despite their quick Inscription times. As a demonstration of the sensitivity, we selected a highly strIngent situation, namely, the monitorIng of a human heartbeat and respiratory functions. These fIndIngs could permit the Inscription of fibre Bragg gratIngs durIng the fibre drawIng process for mass production, allowIng cost-effective, sIngle-use, In Vivo Sensors among other potential uses.
Tom S Glen - One of the best experts on this subject based on the ideXlab platform.
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Ultra-fast polymer optical fibre Bragg gratIng Inscription for medical devices
Light: Science & Applications, 2018Co-Authors: Julien Bonefacino, Jian Wang, Tom S Glen, Xin Cheng, Steven T BolesAbstract:Bragg gratIngs have been written Into polymer optical fibres In a few milliseconds, thanks to the use of a new dopant In the fibres’ cores. Fibre Bragg gratIngs can be quickly Inscribed In silica optical fibres, but it takes much longer to Inscribe gratIngs In polymethyl methacrylate (PMMA) fibres. Julien BonefacIno and co-workers from the Hong Kong Polytechnic University solved this problem by addIng diphenyl disulphide to both raise the refractive Index of the fibres’ cores and make them highly photosensitive. UsIng low-fluence ultraviolet light from a helium–cadmium laser, Bragg gratIngs could be Inscribed In only 7 milliseconds—about 140 times faster than previously reported Inscription times and short enough to make the scheme potentially compatible with fabrication durIng fibre drawIng. The gratIngs are promisIng for use In sensIng applications, such as measurIng heartbeat and respiration. We report the extraordInary result of rapid fibre Bragg gratIng Inscription In doped polymer optical fibres based on polymethyl methacrylate In only 7 ms, which is two orders of magnitude faster than the Inscription times previously reported. This was achieved usIng a new dopant material, diphenyl disulphide, which was found to enable a fast, positive refractive Index change usIng a low ultraviolet dose. These changes were Investigated and found to arise from photodissociation of the diphenyl disulphide molecule and subsequent molecular reorganization. We demonstrate that gratIngs Inscribed In these fibres can exhibit at least a 15 times higher sensitivity than silica glass fibre, despite their quick Inscription times. As a demonstration of the sensitivity, we selected a highly strIngent situation, namely, the monitorIng of a human heartbeat and respiratory functions. These fIndIngs could permit the Inscription of fibre Bragg gratIngs durIng the fibre drawIng process for mass production, allowIng cost-effective, sIngle-use, In Vivo Sensors among other potential uses.
