Browsing by author "Fleming, Simon"
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Deformable wire array: fiber drawn tunable metamaterials
Fleming, Simon; Stefani, Alessio; Tang, Xiaoli; Argyros, Alexander; Kemsley, Daniel; Cordi, James; Lwin, RichardPublished 2017By fiber drawing we fabricate a wire array metamaterial, the structure of which can be actively modified. The plasma frequency can be tuned by 50% by compressing the metamaterial; recovers when released and the process can ...Open AccessConference paper -
Flexible optical fiber sensor based on polyurethane
Kaysir, Rejvi; Stefani, Alessio; Lwin, Richard; Fleming, SimonPublished 2017Polyurethane (PU) based hollow core fibers are investigated as optical sensors. The flexibility of PU fibers makes it suitable for sensing mechanical perturbations. We fabricated a PU fiber using the fiber drawing method, ...Open AccessConference paper -
Highly deformable optical fibers made of polyurethane: OAM generation, tunable metamaterials and sensors
Stefani, Alessio; Lwin, Richard; Fleming, SimonPublished 2017Polyurethane has a Young’s modulus three orders of magnitude lower than silica and can be stretched up to 600%. We report the fabrication of polyurethane optical fibers for applications from THz to the visible. We exploit ...Open AccessConference paper -
Measurement of weak low frequency pressure signal using stretchable polyurethane fiber sensor for application in wearables
Kaysir, Rejvi; Stefani, Alessio; Lwin, Richard; Fleming, SimonPublished 2017The practical realization of low Young’s modulus Polyurethane (PU) based optical fibers offers new possibilities for sensing on bodies due to its bio-compatibility and high material sensitivity. Here, we experimentally ...Open AccessConference paper -
Multimaterial and Flexible Devices Made by Fiber Drawing
Stefani, Alessio; Kuhlmey, Boris; Large, Maryanne; Hayashi, Juliano; Farajikhah, Syamak; Rukhlenko, Ivan; Runge, Antione; Fleming, SimonPublished 2020The ability to co-process different materials at the same time in a thermal process opens up the possibility of scalable fabrication of volumetric multimaterial and multifunctional devices with operation spanning from the ...Open AccessConference paper -
OAM generation, tunable metamaterials and sensors with highly deformable fibers
Stefani, Alessio; Lwin, Richard; Kuhlmey, Boris; Fleming, SimonPublished 2018A flexible fiber-drawn material, i.e. polyurethane, allows for novel applications from THz to the visible. We exploit its elastic properties to generate orbital angular momentum modes, to make pressure sensors and to ...Open AccessConference paper -
Orbital angular momentum modes by twisting of a hollow core antiresonant fiber
Stefani, Alessio; Kuhlmey, Boris; Fleming, SimonPublished 2017Generation and use of orbital angular momentum (OAM) of light is finding more and more interest in a wide variety of fields of photonics: communications, optical trapping, quantum optics, and many more [1]. In the investigation ...Open AccessConference paper -
Pulse wave velocity measurement with soft-polymer optical fibers for wearable continuous blood pressure monitoring
Stefani, Alessio; Rukhlenko, Ivan; Ward, Rebecca; Prinable, Joseph; Large, Maryanne; Fleming, SimonPublished 2020Soft-polymer fibers allow strong conformal contact with the skin and are extremely sensitive for deformation, despite high propagation loss. This enables pulse wave velocities measurements. Blood pressure can then be ...Open AccessConference paper -
Thermally Drawn Biodegradable Fibers with Tailored Topography for Biomedical Applications
Farajikhah, Syamak; Runge, Antoine; Boumelhem, Badwi; Rukhlenko, Ivan; Stefani, Alessio; Sepidar, Sayyar; Innis, Peter; Fraser, Stuart; Fleming, Simon; Large, MaryannePublished 2020There is a growing demand for polymer fiber scaffolds for biomedical applications and tissue engineering. Biodegradable polymers such as polycaprolactone have attracted particular attention due to their applicability to ...Open AccessArticle -
Thermally Drawn Polycaprolactone Fibres with Customised Cross Sections
Farajikhah, Syamak; Rukhlenko, Ivan; Stefani, Alessio; Large, Maryanne; Chrzanowskic, Wojciech; Fleming, SimonPublished 2019There is growing demand for biodegradable polymer fibres in tissue engineering and nerve regeneration. We demonstrate a scalable and inexpensive fabrication technique to produce polycaproactone (PCL) fibres using fibredrawing ...Open AccessConference paper -
Tunable Metamaterials Fabricated by Fiber Drawing
Fleming, Simon; Stefani, Alessio; Tang, Xiaoli; Argyros, Alexander; Kemsley, Daniel; Cordi, James; Lwin, RichardPublished 2017We demonstrate a practical scalable approach to the fabrication of tunable metamaterials. Designed for terahertz (THz) wavelengths, the metamaterial is comprised of polyurethane filled with an array of indium wires using ...Open AccessArticle -
Wearable polyurethane optical fiber based sensor for breathing monitoring
Runge, Antoine; Stefani, Alessio; Lwin, Richard; Fleming, SimonPublished 2018We experimentally demonstrate a wearable breathing monitoring sensor based on a polyurethane (PU) optical fiber. The mechanical flexibility of the PU fiber allows for the simple measurement of inhalation and exhalation ...Open AccessConference paper
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