Relevant bibliographies by topics / Air-silica structured fibre

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Air-silica structured fibre'

Author: Grafiati
Published: 4 June 2021
Last updated: 21 February 2023

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Journal articles on the topic "Air-silica structured fibre"

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Canning, John, Nathaniel Groothoff, Kevin Cook, et al. "Gratings in Structured Optical Fibres." Laser Chemistry 2008 (December 1, 2008): 1–19. http://dx.doi.org/10.1155/2008/239417.

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Grating writing in structured optical fibres and their properties and applications are reviewed. To date, most gratings have been written in a straightforward manner into structured fibres containing a photosensitive germanosilicate step-index core. However, gratings have also been written directly into single material, structured silica fibres and into air-clad cores using two and higher-photon processes with both UV and near IR pulsed (nanosecond-femtosecond) light. Given the intrinsic-added functionality possible within a structured optical fibre, structured fibre gratings offer further cap
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Canning, J., E. Buckley, K. Lyttikainen, and T. Ryan. "Wavelength dependent leakage in a Fresnel-based air–silica structured optical fibre." Optics Communications 205, no. 1-3 (2002): 95–99. http://dx.doi.org/10.1016/s0030-4018(02)01305-6.

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Ahmadov, Nizami, and Irade Shirinzade. "Development of effective fiber-reinforced concrete compositions used in transportation structures." Eastern-European Journal of Enterprise Technologies 2, no. 1 (110) (2021): 6–11. http://dx.doi.org/10.15587/1729-4061.2021.227139.

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The possibility of producing fiber-reinforced concrete with high deformation properties by regulating the microstructure and using it in the design of transport structures was considered. It was found that to create high-performance transport structures, it is necessary to modify fiber mixtures with complex additives, i. e. increase the strength of fiber-reinforced concrete at the micro-level. To obtain a denser structure of the concrete matrix, complex additives were used – ultrafine additive (silica fume) and Master Air 200 B air-entraining additive. It was experimentally proved that using s
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Canning, J., M. A. van Eijkelenborg, T. Ryan, M. Kristensen, and K. Lyytikainen. "Complex mode coupling within air–silica structured optical fibres and applications." Optics Communications 185, no. 4-6 (2000): 321–24. http://dx.doi.org/10.1016/s0030-4018(00)01022-1.

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Vo, Thi Minh Ngoc, Dinh Quang Ho, Tung Thanh Le, et al. "Numerical simulation of all-normal dispersion visible to near-infrared supercontinuum generation in photonic crystal fibers with core filled chloroform." Hue University Journal of Science: Natural Science 130, no. 1B (2021): 43–51. http://dx.doi.org/10.26459/hueunijns.v130i1b.6243.

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This study proposes a photonic crystal fiber made of fused silica glass, with the core infiltrated with chloroform as a new source of supercontinuum (SC) spectrum. We numerically study the guiding properties of the fiber structure in terms of characteristic dispersion and mode area of the fundamental mode. Based on the results, we optimized the structural geometries of the CHCl3-core photonic crystal fiber to support the broadband SC generations. The fiber structure with a lattice constant of 1 μm, a filling factor of 0.8, and the diameter of the first-ring air holes equaling 0.5 μm operates i
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Gowre, Sanjaykumar, Sudipta Mahapatra, and P. K. Sahu. "A Modified Structure for All-Glass Photonic Bandgap Fibers: Dispersion Characteristics and Confinement Loss Analysis." ISRN Optics 2013 (September 22, 2013): 1–5. http://dx.doi.org/10.1155/2013/416537.

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This paper investigates a modified structure for all-glass photonic bandgap fiber (AGPBF) having up-doped silica rods in the cladding region instead of air holes using plane wave expansion (PWE) and finite difference time domain (FDTD) methods. The proposed AGPBF structure exhibits tunable dispersion properties and improved confinement loss. It is observed that the confinement loss can be reduced simply by using a higher doping concentration in silica rods in the cladding. Also, it is possible to achieve flattened dispersion of the order of 1 ps/nm/km over a wide wavelength range.
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Zhang, Pengfei, Chao Wang, Liuwei Wan, et al. "Opto-Microfluidic Fabry-Perot Sensor with Extended Air Cavity and Enhanced Pressure Sensitivity." Micromachines 13, no. 1 (2021): 19. http://dx.doi.org/10.3390/mi13010019.

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An opto-microfluidic static pressure sensor based on a fiber Fabry-Perot Interferometer (FPI) with extended air cavity for enhancing the measuring sensitivity is proposed. The FPI is constructed in a microfluidic channel by the combination of the fixed fiber-end reflection and floating liquid surface reflection faces. A change of the aquatic pressure will cause a drift of the liquid surface and the pressure can be measured by detecting the shift of the FPI spectrum. Sensitivity of the sensor structure can be enhanced significantly by extending the air region of the FPI. The structure is manufa
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Hieu. "INFLUENCE OF STRUCTURE PARAMETERS ON THE SUPERCONTINUUM GENERATION OF PHOTONIC CRYSTAL FIBER." Journal of Military Science and Technology, no. 67 (June 12, 2020): 161–68. http://dx.doi.org/10.54939/1859-1043.j.mst.67.2020.161-168.

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In this paper, we report a numerical calculation of the influence of structural parameters on the supercontinuum generation of photonic crystal fibers. A photonic crystal fiber based on the fused silica glass, eight rings of air holes ordered in a hexagonal lattice, is proposed. Guiding properties in terms of dispersion and confinement loss of the fundamental mode are also studied numerically. As a result, the broadband width of the supercontinuum spectrum will increase when the lattice pitch decreases or the diameter of air hole in the cladding increases. However, the coherence of SC will bec
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Rana, Sohel, Austin Fleming, Nirmala Kandadai, and Harish Subbaraman. "Active Compensation of Radiation Effects on Optical Fibers for Sensing Applications." Sensors 21, no. 24 (2021): 8193. http://dx.doi.org/10.3390/s21248193.

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Neutron and gamma irradiation is known to compact silica, resulting in macroscopic changes in refractive index (RI) and geometric structure. The change in RI and linear compaction in a radiation environment is caused by three well-known mechanisms: (i) radiation-induced attenuation (RIA), (ii) radiation-induced compaction (RIC), and (iii) radiation-induced emission (RIE). These macroscopic changes induce errors in monitoring physical parameters such as temperature, pressure, and strain in optical fiber-based sensors, which limit their application in radiation environments. We present a cascade
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Sanjuán, Miguel Ángel, and Carmen Andrade. "Reactive Powder Concrete: Durability and Applications." Applied Sciences 11, no. 12 (2021): 5629. http://dx.doi.org/10.3390/app11125629.

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Reactive powder concrete (RPC) is an ultra-high-performance concrete (UHPC) developed years ago by Bouygues, with the aim to build strong, durable, and sustainable structures. Some differences can be underlined between the RPC and high-performance concrete (HPC); that is to say, RPC exhibits higher compressive and flexural strength, higher toughness, lower porosity, and lower permeability compared to HPC. Microstructural observations confirm that silica fume enhances the fiber–matrix interfacial characteristics, particularly in fiber pullout energy. This paper reviews the reported literature o
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Dissertations / Theses on the topic "Air-silica structured fibre"

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Lyytik�inen, Katja Johanna. "Control of complex structural geometry in optical fibre drawing." University of Sydney. School of Physics and the Optical Fibre Technology Centre, 2004. http://hdl.handle.net/2123/597.

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Drawing of standard telecommunication-type optical fibres has been optimised in terms of optical and physical properties. Specialty fibres, however, typically have more complex dopant profiles. Designs with high dopant concentrations and multidoping are common, making control of the fabrication process particularly important. In photonic crystal fibres (PCF) the inclusion of air-structures imposes a new challenge for the drawing process. The aim of this study is to gain profound insight into the behaviour of complex optical fibre structures during the final fabrication step, fibre drawing.
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Lyytikäinen, Katja Johanna. "Control of complex structural geometry in optical fibre drawing." Thesis, The University of Sydney, 2004. http://hdl.handle.net/2123/597.

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Drawing of standard telecommunication-type optical fibres has been optimised in terms of optical and physical properties. Specialty fibres, however, typically have more complex dopant profiles. Designs with high dopant concentrations and multidoping are common, making control of the fabrication process particularly important. In photonic crystal fibres (PCF) the inclusion of air-structures imposes a new challenge for the drawing process. The aim of this study is to gain profound insight into the behaviour of complex optical fibre structures during the final fabrication step, fibre drawing.
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Book chapters on the topic "Air-silica structured fibre"

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Zatar, Wael, and Hai Nguyen. "Towards Innovative and Sustainable Construction of Architectural Structures by Employing Self-Consolidating Concrete Reinforced with Polypropylene Fibers." In Architectural Design – Progress Towards Sustainable Construction [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.95091.

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Self-consolidating concrete (SCC) has been successfully employed to reduce construction time and enhance the quality, performance, and esthetic appearance of concrete structures. This research aimed at developing environmentally friendly fiber-reinforced concrete (FRC) consisting of SCC and recycled polypropylene (PP) fibers for sustainable construction of city buildings and transportation infrastructure. The addition of the PP fibers to SCC helps reducing shrinkage cracks and providing enhanced mechanical properties, durability, and ductility of the concrete materials. Several mix designs of self-consolidating fiber-reinforced concrete (SCFRC) were experimentally examined. Material and esthetic properties of the SCFRC mixtures that include micro silica, fly ash, and PP fibers were evaluated. Trial-and-adjustment method was employed to obtain practically optimum SCFRC mixtures, mixtures that are affordable and easy to make possessing enhanced compressive strength and esthetic properties. Slump flow and air content testing methods were used to determine the fresh properties of the SCFRC mixtures, and the esthetic properties of the mixtures were also evaluated. The hardened properties of the SCFRC mixtures were examined using three- and seven-day compression tests. The amount of fine/coarse aggregate, water, and other admixtures were varied while the Portland cement content in all mixtures was maintained unchanged. The maximum three-day compressive strength was 43.17 MPa and the largest slump flow was 736.6 mm. Test results showed enhanced material properties such as slump flow, air content and compressive strength values of the SCFRC mixtures and their excellent esthetic appearance. The favorable seven-day compressive strength of the SCFRC mixture, with 4.8 percent air content and 660.4 mm slump flow, is 39.26 MPa. The mixtures’ in this study are proven to be advantageous for potential SCFRC applications in architectural structures including building façades and esthetically-pleasing bridges.
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Conference papers on the topic "Air-silica structured fibre"

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Martelli, Cicero, Paolo Olivero, John Canning, Nathaniel Groothoff, Brant Gibson, and Shane Huntington. "Air-Silica Structured Fibre Micromachining using Focused Ion Beam." In 2006 Australian Conference on Optical Fibre technology (ACOFT). IEEE, 2007. http://dx.doi.org/10.1109/acoft.2007.4516284.

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Martelli, Cicero, Paolo Olivero, John Canning, Nathaniel Groothoff, Brant Gibson, and Shane Huntington. "Air-Silica Structured Fibre Micromachining using Focused Ion Beam." In 2007 the Joint International Conference on Optical Internet (COIN) and Australian Conference on Optical Fibre Technology (ACOFT). IEEE, 2007. http://dx.doi.org/10.1109/coinacoft.2007.4519191.

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Groothoff, Nathaniel, John Canning, Hugh Inglis, Tom Ryan, Katja Lyytikainen, and Justin Digweed. "DFB photonic crystal fiber (DFB-PCF) laser in Er3+doped air-silica structured optical fibre." In Bruges, Belgium - Deadline Past. SPIE, 2005. http://dx.doi.org/10.1117/12.623497.

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Wadsworth, W. J., M. Rollings, S. A. Bateman, P. J. Mosley, and T. A. Birks. "Silica-air structures for optical fibres." In 2012 14th International Conference on Transparent Optical Networks (ICTON). IEEE, 2012. http://dx.doi.org/10.1109/icton.2012.6253893.

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Lyytika¨inen, Katja, Peter Ra˚back, and Juha Ruokolainen. "Numerical Simulation of a Specialty Optical Fibre Drawing Process." In ASME 2002 Pressure Vessels and Piping Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/pvp2002-1598.

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The present study investigates the mass and heat transfer in the optical fibre fabrication process where a specialty optical preform with a non-homogeneous cross-sectional structure is drawn into a fibre. A finite element method was used to model the steady state fibre drawing process. The model included free surface calculation of the neck-down shape of the preform coupled with a two-dimensional heat transfer equation. The enclosure model was used for the radiation heat transfer. In addition to the silica preform the model took into account the graphite-resistance furnace structure and the in
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Mogilevtsev, D., T. A. Birks, and P. St J. Russell. "Dispersion of Modes Guided in Photonic Crystal Fibres." In The European Conference on Lasers and Electro-Optics. Optica Publishing Group, 1998. http://dx.doi.org/10.1364/cleo_europe.1998.cfb7.

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The photonic crystal fibre (Fig. 1) is a pure silica structure with a solid core surrounded by a hexagonal array of sub-micron air capillaries - the photoniccrystal. One of the unusual properties of the fibre is that it can be single-mode at all wavelengths, as has been confirmed experimentally over the range 337- 1550 nm[1]. This behaviour is due to the unusual wavelength dependence of the effective refractive index of the fibre's photonic crystal cladding[2], which may be expected to have interesting consequences for the guided mode's dispersion. Unfortunately, the simple effective index mod
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Phillips, David M., Keith A. Slinker, Cody W. Ray, et al. "Artificial Hair Sensors: Electro-Mechanical Characterization." In ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/smasis2014-7707.

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Performance demands of future unmanned air vehicles will require rapid autonomous responses to changes in environment. Towards this goal, we expect that the next generation flight control systems will include advanced sensors beyond the contemporary array. One promising scenario correlates measurements of flow footprints over aircraft surfaces with aerodynamic data to aid navigation and feedback control algorithms. As a sensor for this concept, we construct artificial hair sensors (AHSs) based on glass microfibers enveloped in an annular, radially-aligned piezoresistive carbon nanotube (CNT) f
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