Graphene Technology for Copper Additive Manufacturing azonano.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from azonano.com Daily Mail and Mail on Sunday newspapers.
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Polished glass has always been the cornerstone of modern optics and imaging systems. Shaped precisely, it helps us focus light and produce sharp images. However, changing its focus requires physically tilting, sliding, or shifting the lens, often mechanically, which adds bulk to microscopes and telescopes. It is also hard to miniaturize the classical lenses and mirrors currently used.
Metalens technology could solve this problem by exploiting light and matter interactions at the nanometer scale to achieve unparalleled control of light s behavior.
Metalenses are flat surfaces etched with nanostructures that manipulate and focus light. They possess unique properties that cannot be achieved with conventional diffractive surfaces. Furthermore, they are thin, easy to make, and cost-effective.
How Electron Microscopes Differ from Light Microscopes
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Microscopy visualizes structures that are too small to see with the human eye, but that is about all light microscopy and electron microscopy have in common. Light microscopy uses visible light or photons to illuminate a sample, while electron microscopy uses electrons, as the name suggests. Each technique has its advantages and disadvantages, discussed below.
How Does Light Microscopy Work?
The oldest of microscopy techniques, light microscopy, uses visible light and lenses to create a small object s magnified image. Basic light microscopes can be very simple e.g., a magnifying glass, and use one or several lenses for magnification. Compound light microscopes are more complex, using a system of lenses, with one set to enlarge the other s image to achieve higher resolution and sample contrast.
Next-Generation Metal 3D Printing for the Office azom.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from azom.com Daily Mail and Mail on Sunday newspapers.
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Industries worldwide generate large amounts of heat as a by-product of their manufacturing processes; most of this warmth is wasted or lost to the surroundings. A new research project - led by London South Bank University (LSBU) - aims to develop a novel way to recover this wasted heat through innovative hydrogen technologies.
The world-first three-year project will investigate new approaches to reclaim waste heat from energy-intensive industries such as metal, glass, and paper. This heat can be reused in heating and cooling systems to decarbonize or reduce carbon emissions from the manufacturing processes.
Reclaiming Waste Heat