Results 41 to 50 of about 656 (188)
Journal of the European Optical Society-Rapid Publications, 2009 Strong regenerated gratings with a maximum grating strength exceeding (40–50) dB are fabricated inside an optical fibre by bulk macro thermal processing ∼ 900°C using a UV-laser seeded Bragg grating. Further annealing between 1000°C and 1100°C leads to a
Canning John +5 more
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Advanced Functional Materials, EarlyView.Sea cucumber mutable collagenous tissue (MCT) is a remarkable collagen‐based material which can rapidly undergo large changes in stiffness through transiently bound effector proteins. Here, we investigate the hierarchical structure and mechanical response of MCT from Cucumaria frondosa across length scales with a wide range of methods, also exploring ...
Nathalie R. H. Singh +7 more
wiley +1 more source
Sensors, 2017 In this work, fibre Bragg gratings (FBGs) were inscribed in two different undoped poly- (methyl methacrylate) (PMMA) polymer optical fibres (POFs) using different types of UV lasers and their inscription times, temperature and strain sensitivities are ...
Carlos A. F. Marques +9 more
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Tailored Diketopyrrolopyrrole Derivatives for Efficient Deep‐Red Organic Lasers
Advanced Functional Materials, EarlyView.Tailored diketopyrrolopyrrole derivatives exhibit high stable amplified spontaneous emission with single or dual bands. Incorporated into distributed‐feedback lasers based on one‐ and two‐dimensional dichromated‐gelatin diffractive gratings, these materials provide a robust, flexible platform for integrated organic deep‐red light sources. ABSTRACT Deep‐
Pablo Pasqués‐Gramage +10 more
wiley +1 more source
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
Growth Characteristics of Fiber Bragg Gratings Fabricated in High Germania Boron Co-Doped Fiber
International Islamic University Malaysia Engineering Journal, 2012 This paper reports and provides an explanation for the growth characteristics of fibre Bragg gratings (FBGs) fabricated in high germania boron co-doped optical fiber by using a continuous wave (CW) doubled frequency Argon ion laser as an UV light source.
S. W. Harun , P. Poopalan and H. Ahmad
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Polymer Fibre Bragg Gratings and Sensing
Advanced Photonics 2015, 2015 Polymer FBGs have advantages for sensing because of low Young's modulus, high temperature sensitivity, large strain range and so on. They are attractive for many niche applications such as structural health monitoring of composite materials, biochemical and biomedical sensing.
Gang-Ding Peng +4 more
openaire +2 more sources
Advanced Materials, EarlyView.Mixed‐cation lead mixed‐halide perovskites suffer from structural instabilities linked to nanoscale heterogeneity. To probe this non‐destructively, a low‐dose, concurrent 4D‐STEM and EDX methodology has been developed. Examining a (FA0.83Cs0.17)Pb(I0.8Br0.2)3 film revealed a complex mosaic of coexisting crystal structures. Crucially, local deficiencies
Jinseok Ryu +6 more
wiley +1 more source
Fatigue Performance of Type I Fibre Bragg Grating Strain Sensors
Sensors, 2019 Although fibre Bragg gratings (FBGs) offer obvious potential for use in high-density, high-strain sensing applications, the adoption of this technology in the historically conservative aerospace industry has been slow.
Naizhong Zhang +4 more
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Influence of Adhesive Bonding on the Dynamic and Static Strain Transfers of Fibre Optic Sensors
Photonics, 2023 The influence of the bonding procedure (the adhesive type, application procedure, etc.) on the static and dynamic strain transfers of bonded optical fibre sensors is studied theoretically and experimentally at room temperature.
Chloé Landreau +6 more
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