Scientists at the National Physical Laboratory (NPL), Teddington, Middlesex, UK have good news for manufacturers and users across the optical instrumentation industry. Based on existing processes developed in the US and Japan, a team of researchers at NPL has developed a new technique for commercial manufacturing of ultra-black coatings, which represent one of the blackest, lowest reflectance surfaces developed so far.
Performance of optical instrumentation depends on the quality of materials used in their manufacture. For the accuracy of measurement in the ultra-violet, infra-red and visible regions, optimal radiation detection and minimisation of stray light is crucial.
By studying the effect of different methods of chemical etching on various compositions of nickel-phosphorous alloys, researchers have come up with the most effective commercially available black coating to date. With reflectance as low as 0.35% in the visible region, the coating, known as NPL Super Black or Ni-P black – as it is based on a nickel -phosphorous compound – is set to have a major impact in fields such as radiometry, spectroscopy, optical metrology, and within the aerospace and defence industries.
Noor Kheir | alfa
ADIR Project: Lasers Recover Valuable Materials
21.07.2017 | Fraunhofer-Institut für Lasertechnik ILT
High-tech sensing illuminates concrete stress testing
20.07.2017 | University of Leeds
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....
A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...
Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision
Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...
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