Cloaking: Not Just for Star Trek Anymore?

摘要

Although stealth technology has come a long way, invisibility has remained largely confined to the world of fiction. However, as recently reported in the online journal, Scientific Reports, some Iowa State University students appear to have taken a significant step in that direction. Working on the theory that electromagnetic waves - and possibly short wavelengths of visible light - can be suppressed using flexible, tunable liquid-metal materials, they developed a stretchable polymer "meta-skin" that can be tuned to reduce reflections over a wide range of radar frequencies.