Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"Fiber Fabrication"”.
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Improved draw process in optical fiber fabrication
The performance of an optical fiber depends to a great extent on the conditions of the process being used to draw the fiber from a glass preform. To get fibers with higher strength and lower transmission loss, the parameters of the draw process must be optimized and the geometric uniformity of the …
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Advances in Bioresorbable phosphate glass optical fiber fabrication
L'abstract è presente nell'allegato / the abstract is in the attachment
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Multi-Material Fiber Fabrication and Applications in Distributed Sensing
… sensing methods based on silica optical fiber and electric coaxial cables have some limitations for specific applications, such as in smart textiles and wearable sensors. By adopting the fiber thermal drawing technique, we have designed and fabricated multi-material electrode-embedded …
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Multilayer composite photonic bandgap fibers
Materials and fabrication techniques are developed that lead to the successful fabrication of multilayer composite photonic bandgap fibers. The pertinent background in electromagnetic theory of multilayer dielectric mirrors and optical fibers is surveyed. Materials properties constraints are …
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NMR studies of the chemical additives effect on the sol-gel process
… processings such as coating, thin film and fiber fabrication.
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Mode Volume Reduction in Single Crystal Sapphire Optical Fibers
… selection for single crystal sapphire optical fiber (SCSF) to improve the optical property in sensing applications. Single crystal sapphire fibers were fabricated with a Laser Heated Pedestal Growth (LHPG) system, which was constructed in-house at Virginia Tech. The cost effective, high …
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The Synthetic spider silk fibers spun from Pyriform Spidroin 2, a glue silk protein discovered in orb-weaving spider attachment discs
<p>Spider attachrnentdisc silk fibers are spun into a viscous liquid that rapidly solidifies, gluing dragline silk fibers to substrates for locomotion or web construction. Here we report the identification and artificial spinning of a novel attachment disc glue silk fibroin, Pyriform Spidroin 2 …
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Advancement of fiber image guide based snapshot imaging spectrometer technology for bioimaging and environmental applications
… images and spectra. Previous implementations of fiber based imaging spectrometers were focused on breadboard proof of concept designs and were not optimized for field imaging. This thesis details the development of two generations of imaging spectrometers for remote sensing of crop health and the …
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Engineering Biomedical and Bioinspired Fiber Devices via Thermal Drawing
Fibers are ubiquitous as elements in broad fields from conventional textiles and optics to smart textiles and electronics. One of the fiber fabrication methods, thermal drawing process, has a unique strength on a scalable production of multimaterial fibers. Based on various properties of multiple …
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Simulating and calibrating stretchable optical fibers for studying neural dynamics
… a polyvinyl alcohol (PVA) hydrogel optical fiber for photometric recording of neural dynamics that is flexible and stretchable, leading to minimal harm to surrounding brain tissue. The hydrogel fiber fabrication method is optimized for highest refractive index and lowest autofluorescence for …
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Multimaterial multifunctional fiber devices
Optical fibers and semiconductor devices differ significantly in their properties and their processing approaches. The latter require an assembly of metal, insulator and semiconductor materials into complex geometries with small feature sizes (sub 100 nm), while maintaining high quality interfaces. …
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Novel solution processing and characterization of aligned carbon nanotube materials for rapid composition-property relationship determination and additive manufacturing
… in chlorosulfonic acid (CSA) into films and fibers with high structural order. The aligned films have a high degree of order and exhibit anisotropic optical, electrical, and mechanical properties homogeneously over 10 cm2. We utilize this process to reduce the experimental time required for …
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Multimaterial, multifunctional fiber-based designs for integration into minimally invasive and wearable, translatable medical devices
Fiber-based medical devices have the potential to contribute to both research and clinical applications through their multifunctionalities, material properties, compact sizes, and customizable geometries. This thesis discusses current developments and testing of such devices. A minimally invasive …
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Ionizing Radiation Resistance of Random Hole Optical Fiber for Nuclear Instrumentation and Control Applications
Random hole optical fibers (RHOF) offer advantages over other types of microstructured optical fibers (MOFs). They are inexpensive and easy-to-make when compared to the high cost of ordered hole MOFs. They also have unique characteristics since they contain open and closed holes. The open holes …