This Thin, Flexible Light-absorber Material Gives You Stealth Feature

Posted: Feb 4 2017, 4:49am CST | by , in News | Latest Science News

 

This thin, flexible light-absorber Material gives You Stealth Feature
Credit: UC San Diego Jacobs School of Engineering
 

This thin, flexible and light-weight material can cool your room on hot sunny days, may give you stealth features by blocking thermal detection and absorb light from every angle.

Engineers from the University of California, San Diego have developed an absorbing material called near-perfect broadband absorber that can absorb more than 87 per cent of near-infrared light.

The absorber can be theoretically customised to absorb certain wavelengths of light while letting others pass through.

"This material offers broadband, yet selective absorption that could be tuned to distinct parts of the electromagnetic spectrum," said Zhaowei Liu, Professor at UC San Diego in a paper published in Proceedings of the National Academy of Sciences.

Though material that can absorb light already exists, it is bulky, brittle and cannot be controlled to absorb only a selected range of wavelengths. The flaw in such absorbers is that they not only block infrared radiation for cooling, but also normal light and radio waves that transmit television and radio programmes.

The technology is still at the developmental stage.

"There are different parameters that we can alter in this design to tailor the material's absorption band: the gap size between tubes, the ratio of the materials, the types of materials, and the electron carrier concentration," said Conor Riley from UC San Diego.

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<a href="/latest_stories/all/all/2" rel="author">Luigi Lugmayr</a>
Luigi Lugmayr () is the founding chief Editor of I4U News and brings over 15 years experience in the technology field to the ever evolving and exciting world of gadgets. He started I4U News back in 2000 and evolved it into vibrant technology magazine.
Luigi can be contacted directly at ml@i4u.com.

 

 

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