Japanese team takes world-first step in trapping light
A group of Japanese scientists have become the first to succeed in trapping part of the light spectrum inside a tiny cube full of holes, technology that could be used in military stealth equipment or a light-based computer.
The team managed to trap electromagnetic waves of a certain frequency inside the cube -- called a Menger sponge -- for one ten-millionth of a second.
The wave-trapping technology could be used to block unwanted cellphone transmissions, and "theoretically" in military stealth applications, he said, but noted that was not the aim of the project.
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