Experts at Queen Mary University of London (QMUL) created a composite material with nano-particles that can make objects disappear. This material resembles an invisibility cloak.
Scientists partnered with UK industry to demonstrate a practical cloaking device, which allows curved surfaces to look flat to electromagnetic waves.
The research is still a long way from creating the invisibility cloak in Harry Potter novels, but it could still change the way antennas are linked to their platform. The experiment could allow for antennas to have new tethering and material properties.
Professor Yang Hao from QMUL School of Electronic engineering and Computer Science knows that the design is based on transformation optics. A concept behind the idea of an invisibility cloak.
Previous experiments have been working at one frequency. Now, experts have demonstrated that it works at a bigger range of frequencies, which makes this kind of technology useful for engineering purposes. It could help build nano-antennas and have applications for the aerospace industry.
Experts coated a surface with nanocomposite materials, with seven different layers. This material is called graded index nanocomposite, and its electric property depends on the position of each layer. The effect is to hide the object from view. Such a structure can “cloak” an object that would normally have caused the wave to scatter.
This design has plenty of applications, from microwave utilities to optics for the control of electromagnetic surface waves.
Study author Dr. Luigi La Spada pointed out that the study and manipulation of these waves are key to developing industrial and technological solutions for designing real-life platforms with different application fields.
There is a practical possibility to use nanocomposites to control surface wave propagation through advance crafting. Maybe most importantly the approach can work for other physical phenomena that are described through wave equations, like acoustics. This is why researchers’ work may have an industrial impact.
The research was published in the Scientific Reports journal. Lately, scientists have made important advances in the competition for a fully functioning invisibility cloak. Last year, researchers from Berkley National Laboratory developed a micro invisibility shield which could be scaled up in size.
Do you think we’ll ever have an invisible cloak capable of dealing with large objects and multiple light-spectrums? Leave a comment below!
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