Beta
×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Glass invisibility cloak shields infrared

Anonymous Coward writes | more than 4 years ago

Science 0

An anonymous reader writes "Invisibility cloaks are slowly working their way down to shorter wavelengths--starting at millimeter long microwaves and working their way to the nanometer wavelengths of visible light. EETimes says we are about half way there--micrometer wavelengths--in this story about using chalcogenide glass to create invisibility cloaks in the infrared. Next stop Harry Potter style cloaks. Here's what EETimes says:

"Invisibility cloaks cast in chalcogenide glass can render objects invisible to infrared frequencies of light, according to researchers at Michigan Technological University...Most other demonstrations of invisibility cloaks have used metamaterials composed of free-space split-ring resonators that were constructed from metal printed-circuit board traces surrounded by traditional dielectric material. The Michigan Tech researchers...claim that by substituting nonmetallic glass resonators made from chalcogenide glass, infrared cloaks are possible too..."

This story also has some other details about how invisibility cloaks work and predicts further developments will eventually realize Harry Potter style cloaks. I'm still not convinced that such cloaks would really be undetectable, but at least its fun to read about how seriously these researchers are taking the adage: 'Any sufficiently sophisticated technology is indistinguishable from magic,' Arthur C. Clarke."

Link to Original Source

cancel ×

0 comments

Sorry! There are no comments related to the filter you selected.

Check for New Comments
Slashdot Login

Need an Account?

Forgot your password?