Invisibility has always been a popular concept in science fiction and fantasy. Many popular action movies have used such techniques. But in reality, if someone wants to be invisible it is a big challenge. But with recent advances in technology, it seems to be easier to implement.
When light strikes an object it may be absorbed or reflected. The object will appear opaque when absorbed. The light must pass through the material to achieve true transparency.
Scientists are working on developing a special material called metamaterial. This will help guide the electromagnetic radiation around the object. Then makes it invisible.
Metallic lenses are quite different from traditional lenses. They are easy to fabricate into thin spheres and can be used for a variety of applications such as cameras, virtual reality devices, and microscopes.
Through the use of titanium-based nanofins, it guides the light and allows it to refract at the required angle. Then lenses became cheaper, lighter, and more effective.
Although metamaterials have achieved extensive coverage, they have not yet been able to shield objects from visible light. The integration of metallic materials with metallic materials can overcome this limitation. By combining metallic nanofin technology with a metamaterial cloak, we can achieve invisibility over a wide range of wavelengths, including visible light.
It is important to note that achieving true invisibility is still a complex and challenging task. Although considerable progress has been made, there are still many hurdles to overcome before a fully functional invisibility cloak can be developed. However, as technology advances it is possible that, within a decade or two, we will see significant progress towards making invisibility a reality. Recent advances in metamaterials and metals have brought us closer to creating an invisibility cloak.