The Experts below are selected from a list of 981 Experts worldwide ranked by ideXlab platform
Rongping Wang - One of the best experts on this subject based on the ideXlab platform.
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mid infrared supercontinuum covering 2 0 16 μm in a low loss Telluride single mode fiber
Laser & Photonics Reviews, 2017Co-Authors: Zheming Zhao, Xunsi Wang, Zhanghao Pan, Zijun Liu, Peiqing Zhang, Xiang Shen, Qiuhua Nie, Shixun Dai, Rongping WangAbstract:A mid-infrared (MIR) supercontinuum (SC) has been demonstrated in a low-loss Telluride Glass fiber. The double-cladding fiber, fabricated using a novel extrusion method, exhibits excellent transmission at 8–14 μm: < 10 dB/m in the range of 8–13.5 μm and 6 dB/m at 11 μm. Launched intense ultrashort pulsed with a central wavelength of 7 μm, the step-index fiber generates a MIR SC spanning from ∼2.0 μm to 16 μm, for a 40-dB spectral flatness. This is a fresh experimental demonstration to reveal that Telluride Glass fiber can emit across the all MIR molecular fingerprint region, which is of key importance for applications such as diagnostics, gas sensing, and greenhouse CO2 detection.
Bureau Bruno - One of the best experts on this subject based on the ideXlab platform.
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Telluride Glass single mode fiber for mid and far infrared filtering
'The Optical Society', 2016Co-Authors: Cui Shuo, Boussard-plédel Catherine, Troles Johann, Bureau BrunoAbstract:International audienceFor the detection of an exo-planet on which signs of life are possible, one needs to develop single mode fibers working in the mid-IR. Telluride Glasses are known for their large transparency in the mid and far infrared region, but the drawback is their high crystallization tendency during the reshape process. In this paper, a new method of preform preparation is explored and used to develop small core (20 µm) tellurium based Glass fibers. They transmit light from 3 to about 16 µm with minimum losses near 7.9 dB·m−1. Moreover, this fiber presents single mode guidance at 10.3 µm
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Te-based Glass fiber for far-infrared biochemical sensing up to 16 μm
'The Optical Society', 2014Co-Authors: Boussard-plédel Catherine, Cui Shuo, Bureau Bruno, Lucas JacquesAbstract:International audienceChalcogenide Glass fibers are very suitable to carry out mid-infrared spectroscopy by Fiber Evanescent Wave Spectroscopy (FEWS). Nowadays, selenide Glasses are used for FEWS, but the reachable domain is limited in the infrared to typically 12 μm. Te-rich Glasses, due to their heavy atomic weight, are better for far-infrared sensing but they crystallize easily and until now that was difficult to prepare operational optical fibers from such Glasses. In this work, Te-Ge-AgI highly purified Glasses have been prepared and successfully drawn into optical fiber. The minimum of attenuation is 3 dB/m around 10 μm, which is up to now the lowest value ever measured for Te-based fiber. Overall, such fibers open the sensing window up to 16 μm against 12 μm so far. Then, for the first time, tapered Telluride fibers with different diameters at the sensing zone were obtained during the fiber drawing process. Chloroform and butter were used to test the fiber infrared sensing ability, and the sensitivity has been greatly enhanced as the sensing zone fiber diameter decreases. Finally, the new protocol of Telluride Glass preparation allows shaping them into efficient functional fibers, opening further in the mid-infrared which is essential for chemical spectroscopy
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From selenium- to tellurium-based Glass optical fibers for infrared spectroscopies.
'MDPI AG', 2013Co-Authors: Cui Shuo, Chahal Radwan, Boussard-plédel Catherine, Nazabal Virginie, Doualan Jean-louis, Troles Johann, Lucas Jacques, Bureau BrunoAbstract:International audienceChalcogenide Glasses are based on sulfur, selenium and tellurium elements, and have been studied for several decades regarding different applications. Among them, selenide Glasses exhibit excellent infrared transmission in the 1 to 15 µm region. Due to their good thermo-mechanical properties, these Glasses could be easily shaped into optical devices such as lenses and optical fibers. During the past decade of research, selenide Glass fibers have been proved to be suitable for infrared sensing in an original spectroscopic method named Fiber Evanescent Wave Spectroscopy (FEWS). FEWS has provided very nice and promising results, for example for medical diagnosis. Then, some sophisticated fibers, also based on selenide Glasses, were developed: rare-earth doped fibers and microstructured fibers. In parallel, the study of Telluride Glasses, which can have transmission up to 28 µm due to its atom heaviness, has been intensified thanks to the DARWIN mission led by the European Space Agency (ESA). The development of Telluride Glass fiber enables a successful observation of CO₂ absorption band located around 15 µm. In this paper we review recent results obtained in the Glass and Ceramics Laboratory at Rennes on the development of selenide to Telluride Glass optical fibers, and their use for spectroscopy from the mid to the far infrared ranges
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Telluride Glasses for far infrared photonic applications
'The Optical Society', 2013Co-Authors: Lucas Pierre, Boussard-plédel Catherine, Yang Zhiyong, Fah Megan, Luo Tao, Jiang Shibin, Anne Marie-laure, Bureau BrunoAbstract:International audienceTelluride Glasses possess the widest infrared window of all amorphous materials and are key to a number of long-wavelength applications such as bio-sensing. However they are not intrinsically good Glass formers and require significant materials engineering for device fabrication. Strategies for stable Glass engineering are presented and the fabrication of far infrared optical fibers is described. A new type of optical sensor based on electrophoretic capture of protein is also presented. This sensor is based on a conducting Telluride Glass which can act as both a capture electrode and an infrared optical element for collecting vibrational signatures of target molecules such as proteins
Bruno Bureau - One of the best experts on this subject based on the ideXlab platform.
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From selenium- to tellurium-based Glass optical fibers for infrared spectroscopies
Molecules, 2013Co-Authors: Shuo Cui, Radwan Chahal, Jean-louis Doualan, Jacques Lucas, Johann Troles, Catherine Boussard-plédel, Virginie Nazabal, Bruno BureauAbstract:Chalcogenide Glasses are based on sulfur, selenium and tellurium elements, and have been studied for several decades regarding different applications. Among them, selenide Glasses exhibit excellent infrared transmission in the 1 to 15 µm region. Due to their good thermo-mechanical properties, these Glasses could be easily shaped into optical devices such as lenses and optical fibers. During the past decade of research, selenide Glass fibers have been proved to be suitable for infrared sensing in an original spectroscopic method named Fiber Evanescent Wave Spectroscopy (FEWS). FEWS has provided very nice and promising results, for example for medical diagnosis. Then, some sophisticated fibers, also based on selenide Glasses, were developed: rare-earth doped fibers and microstructured fibers. In parallel, the study of Telluride Glasses, which can have transmission up to 28 µm due to its atom heaviness, has been intensified thanks to the DARWIN mission led by the European Space Agency (ESA). The development of Telluride Glass fiber enables a successful observation of CO₂ absorption band located around 15 µm. In this paper we review recent results obtained in the Glass and Ceramics Laboratory at Rennes on the development of selenide to Telluride Glass optical fibers, and their use for spectroscopy from the mid to the far infrared ranges.
Zheming Zhao - One of the best experts on this subject based on the ideXlab platform.
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mid infrared supercontinuum covering 2 0 16 μm in a low loss Telluride single mode fiber
Laser & Photonics Reviews, 2017Co-Authors: Zheming Zhao, Xunsi Wang, Zhanghao Pan, Zijun Liu, Peiqing Zhang, Xiang Shen, Qiuhua Nie, Shixun Dai, Rongping WangAbstract:A mid-infrared (MIR) supercontinuum (SC) has been demonstrated in a low-loss Telluride Glass fiber. The double-cladding fiber, fabricated using a novel extrusion method, exhibits excellent transmission at 8–14 μm: < 10 dB/m in the range of 8–13.5 μm and 6 dB/m at 11 μm. Launched intense ultrashort pulsed with a central wavelength of 7 μm, the step-index fiber generates a MIR SC spanning from ∼2.0 μm to 16 μm, for a 40-dB spectral flatness. This is a fresh experimental demonstration to reveal that Telluride Glass fiber can emit across the all MIR molecular fingerprint region, which is of key importance for applications such as diagnostics, gas sensing, and greenhouse CO2 detection.
Boussard-plédel Catherine - One of the best experts on this subject based on the ideXlab platform.
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Tb3+ doped Ga5Ge20Sb10Se65-xTex (x=0-37.5) chalcogenide Glasses and fibers for MWIR and LWIR emissions
'The Optical Society', 2018Co-Authors: Abdellaoui N., Boussard-plédel Catherine, Starecki F., Shpotyuk Y., Doualan J-l., Braud A., Baudet E., Nemec P., Cheviré François, Dussauze M.Abstract:International audienceChalcogenide Glasses with a nominal composition of Ga5Ge20Sb10Se65-xTex (x = 0, 10, 20, 25, 30, 32.5, 35, 37.5) were synthesized. Their physico-chemical properties, Glass network structure and optical properties are clearly modified via the substitution of selenium by tellurium. Based on a detailed study of the Ga5Ge20Sb10Se65-xTexTex bulk Glasses properties, the Ga5Ge20Sb10Se45Te20 seleno-Telluride Glass optimal composition has been selected for fiber drawing. The luminescence properties of Tb3+ (500 ppm) doped Ga5Ge20Sb10Se65 and Ga5Ge20Sb10Se45Te20 bulk Glasses and fibers were studied. Radiative transitions parameters calculated from the Judd-Ofelt theory are compared to the experimental values. Mid-wavelength infrared emission in the range of 4.3-6.0 μm is attributed to the 7F5→7F6 transition of Tb3+ ions with a corresponding experimental lifetime of 8.9 and 7.8 ms for the selenide and seleno-Telluride matrix, respectively. The 7F4→7F6emission was recorded at 3.1 μm with a good signal-to-noise ratio, evidencing a rather strong emission from the 7F4 manifold. Finally, although it was expected that the phonon energy will be lower for Telluride Glasses, selenide Glasses are still more suitable for mid-wavelength infrared and long wavelength infrared emissions with well-defined emissions from 3.1 to 8 μm
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Telluride Glass single mode fiber for mid and far infrared filtering
'The Optical Society', 2016Co-Authors: Cui Shuo, Boussard-plédel Catherine, Troles Johann, Bureau BrunoAbstract:International audienceFor the detection of an exo-planet on which signs of life are possible, one needs to develop single mode fibers working in the mid-IR. Telluride Glasses are known for their large transparency in the mid and far infrared region, but the drawback is their high crystallization tendency during the reshape process. In this paper, a new method of preform preparation is explored and used to develop small core (20 µm) tellurium based Glass fibers. They transmit light from 3 to about 16 µm with minimum losses near 7.9 dB·m−1. Moreover, this fiber presents single mode guidance at 10.3 µm
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Te-based Glass fiber for far-infrared biochemical sensing up to 16 μm
'The Optical Society', 2014Co-Authors: Boussard-plédel Catherine, Cui Shuo, Bureau Bruno, Lucas JacquesAbstract:International audienceChalcogenide Glass fibers are very suitable to carry out mid-infrared spectroscopy by Fiber Evanescent Wave Spectroscopy (FEWS). Nowadays, selenide Glasses are used for FEWS, but the reachable domain is limited in the infrared to typically 12 μm. Te-rich Glasses, due to their heavy atomic weight, are better for far-infrared sensing but they crystallize easily and until now that was difficult to prepare operational optical fibers from such Glasses. In this work, Te-Ge-AgI highly purified Glasses have been prepared and successfully drawn into optical fiber. The minimum of attenuation is 3 dB/m around 10 μm, which is up to now the lowest value ever measured for Te-based fiber. Overall, such fibers open the sensing window up to 16 μm against 12 μm so far. Then, for the first time, tapered Telluride fibers with different diameters at the sensing zone were obtained during the fiber drawing process. Chloroform and butter were used to test the fiber infrared sensing ability, and the sensitivity has been greatly enhanced as the sensing zone fiber diameter decreases. Finally, the new protocol of Telluride Glass preparation allows shaping them into efficient functional fibers, opening further in the mid-infrared which is essential for chemical spectroscopy
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From selenium- to tellurium-based Glass optical fibers for infrared spectroscopies.
'MDPI AG', 2013Co-Authors: Cui Shuo, Chahal Radwan, Boussard-plédel Catherine, Nazabal Virginie, Doualan Jean-louis, Troles Johann, Lucas Jacques, Bureau BrunoAbstract:International audienceChalcogenide Glasses are based on sulfur, selenium and tellurium elements, and have been studied for several decades regarding different applications. Among them, selenide Glasses exhibit excellent infrared transmission in the 1 to 15 µm region. Due to their good thermo-mechanical properties, these Glasses could be easily shaped into optical devices such as lenses and optical fibers. During the past decade of research, selenide Glass fibers have been proved to be suitable for infrared sensing in an original spectroscopic method named Fiber Evanescent Wave Spectroscopy (FEWS). FEWS has provided very nice and promising results, for example for medical diagnosis. Then, some sophisticated fibers, also based on selenide Glasses, were developed: rare-earth doped fibers and microstructured fibers. In parallel, the study of Telluride Glasses, which can have transmission up to 28 µm due to its atom heaviness, has been intensified thanks to the DARWIN mission led by the European Space Agency (ESA). The development of Telluride Glass fiber enables a successful observation of CO₂ absorption band located around 15 µm. In this paper we review recent results obtained in the Glass and Ceramics Laboratory at Rennes on the development of selenide to Telluride Glass optical fibers, and their use for spectroscopy from the mid to the far infrared ranges
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Telluride Glasses for far infrared photonic applications
'The Optical Society', 2013Co-Authors: Lucas Pierre, Boussard-plédel Catherine, Yang Zhiyong, Fah Megan, Luo Tao, Jiang Shibin, Anne Marie-laure, Bureau BrunoAbstract:International audienceTelluride Glasses possess the widest infrared window of all amorphous materials and are key to a number of long-wavelength applications such as bio-sensing. However they are not intrinsically good Glass formers and require significant materials engineering for device fabrication. Strategies for stable Glass engineering are presented and the fabrication of far infrared optical fibers is described. A new type of optical sensor based on electrophoretic capture of protein is also presented. This sensor is based on a conducting Telluride Glass which can act as both a capture electrode and an infrared optical element for collecting vibrational signatures of target molecules such as proteins
