Stack-and-draw Technique
Stack-and-draw Technique - Related Videos
11:57
Fabricating Metamaterials Using the Fiber Drawing Method
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Cited by 23 •
2012
Metamaterials at terahertz frequencies offer unique opportunities, but are challenging to fabricate in bulk. We adapt the fabrication procedure for microstructured polymer optical fibers to inexpensively fabricate metamaterials potentially on an industrial scale. We produce polymethylmethacrylate fibers containing ~10 μm diameter indium wires separated by ~100 μm, which exhibit a terahertz plasmonic response.
06:22
Motor Learning in Mirror Drawing
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2023
Source: Laboratory of Jonathan Flombaum—Johns Hopkins University Colloquially, the terms learning and memory encompass a broad range of behaviors and mental systems, everything from learning to tie a shoe to mastering calculus (and a lot in between). Experimental psychologists have divided up learning mechanisms into groups that seem to have different properties, and that seem to rely on different brain systems. A major division is between declarative and non-declarative memory, roughly, the...
05:27
Drawing Blood from Rats through the Saphenous Vein and by Cardiac Puncture
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Cited by 87 •
2007
Blood draws are necessary in a large number of studies, for example to study the pharmacokinetics profile of a compound. Here, we demonstrate how to draw blood from rats using two techniques: blood draw from the saphenous vein or by cardiac puncture.
01:16
Drawing Free-body Diagrams: Rules
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2023
The first step in describing and analyzing most phenomena in physics involves the careful drawing of a free-body diagram. Free-body diagrams are useful in analyzing forces acting on an object or system, and are employed extensively in the study and application of Newton's laws of motion. The steps to draw a free-body diagram are listed below: • Draw the object under consideration. If treating the object as a particle, represent the object as a point. Place this point at the origin of a...
09:38
Scaling of Engineered Vascular Grafts Using 3D Printed Guides and the Ring Stacking Method
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Cited by 6 •
2017
Scalable engineered blood vessels would improve clinical applicability. Using easily sizable 3D-printed guides, rings of vascular smooth muscle were created and stacked into a tubular form, forming a vascular graft. Grafts can be sized to meet the range of human coronary artery dimensions by simply changing the 3D-printed guide size.
FAQs
Preserving relative geometry lets the final fiber retain the intended arrangement of cores, hollow channels, and cladding features as its overall diameter decreases. This dimensional scaling is central to engineering fibers with designed internal structures, because changes in spacing or shape could alter the resulting light-guidance behavior.
Heating softens the glass enough for drawing to reduce the structure’s diameter, while the arrangement of its elements remains proportionally organized. The balance between softening and drawing therefore determines whether the fabricated fiber maintains the planned core, channel, and cladding configuration needed for specialized optical properties.
Repeated drawing can further refine the fiber’s internal structure after an initial reduction in size. This additional refinement supports tighter control over the geometry of hollow channels, cladding features, and core configurations, giving engineers another way to produce fibers whose optical behavior is tailored to a particular design.
Fabrication begins by arranging glass rods and capillaries into a stacked preform. The preform is then heated until the glass softens and drawn to reduce its diameter while preserving the relative arrangement of the components. If further structural refinement is needed, the drawing process can be repeated.
The resulting internal geometry can support tailored light guidance by controlling features such as hollow channels, cladding regions, and core configurations. In engineering research, this makes it possible to create fibers with specialized optical properties rather than relying on a single fixed structure, expanding the range of fiber designs available for experiments and devices.
Fibers fabricated through this approach are used in telecommunications, sensing, nonlinear optics, and other applications requiring specialized optical properties. Their value comes from the ability to engineer internal structures that influence light guidance, allowing the same general fabrication strategy to support different performance goals across optical-fiber engineering.