US scientists have found that the new material can be used for stealth stealth

Science fiction film "Harry Porter", many times the danger of Potter are to be a stealth can be something to help them escape. Now, two American scientists are trying to turn this dream into reality.

Scientists have been conducting stealth technology research, and has achieved some success. However, most of these results use the chameleon's color changing principle, that is, their color becomes the same as the surrounding environment to camouflage. For example, Japanese researchers use special reflective material made of windbreaker can make the vision of the visual illusion. But scientists at the University of Pennsylvania in the United States have found that such plasmonic covers are "smarter". This independent structure can reduce visibility from the observer's point of view. It's sort of like a stealth fighter in the Star Trek: Space Chase, which relies on a button switch to disappear.

The object can be seen as a result of the light out of the object or the light reflected from the object into the eye, which stimulates the result of the optic nerve. Two scientists have proposed that the key to new ideas is to reduce the scattering of light. We can see objects because light is reflected from objects. If the light is blocked (the object does not absorb Ren Heguang), the object is invisible. The plasmon polaritons can block the scattering of a light.

Plasmon (plasmon) is the energy quantum of the longitudinal oscillation of the density fluctuations of the electron gas. The scientists say that what is made of such a material can be dispersed into visible light. If the frequency of light is close to the resonant frequency of the plasmon, the object is not visible. This idea is not contrary to the laws of physics.

"The concept is interesting. Perhaps this technique can be applied to covert action and camouflage." Some scientists evaluate the road.