Invisibility Using Plasmonic Covers
Researchers Andrea Alu and Nader Engheta of the University of Pennsylvania have written a paper on how plasmonic resonance effects might be used to render an object invisible. Their paper (Achieving transparency with plasmonic coatings) describes how plasmonic covers could be used to make an object nearly invisible to an observer.
Most efforts to render an object "invisible" are made in the same general vein as those made by the chameleon - try to make yourself look just like what you are standing in front of. This method takes the more radical approach of trying to avoid scattering light back to the observer's eyes.
(From Romulan Cloaking Device)
However, before you rush right out and buy the Romulan cloaking device that guy at the Star Trek convention was trying to sell you, you might consider the details. Plasmonic resonance can only be used to "hide" very small objects - microscopically small objects - and usually the effect would only work with objects of a very specific shape and with light of a particular wavelength. Since the effect would only work when the wavelength of the light being scattered is similar to the size of the object being shielded, it would not work for objects the size of people or space ships unless the wavelength of radiation used to "see" with was very large.
Thanks to alert readers Adi and W for pointing this article out; read more at engineers devise invisibility shield.
Scroll down for more stories in the same category. (Story submitted 3/2/2005)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 11 )
Related News Stories -
3D Printing Of Metallic Glass
Draw Circuits With Conductive Ink
'It's rewiring things... squeezing silver toothpaste in a ribbon along the printed circuitry.'
How To Encode The 'Memory' Of Materials
'Just jar it, and it falls into that structure like a rubber figure returning to shape.' - Samuel R. Delany, 1966.
Surface Film Repels All Bacteria
'Most gentlemen's and ladies' gloves nowadays were constructed of infinitesimal fabricules that knew how to eject dirt...'- Neal Stephenson, 1995
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Liftware Level, Google's Smart Spoon
'The result was indeed marvelous... I did not stagger and I did not reel.'
Cute Teddy Bear Robot Favorite Of Hospitalized Children
'...thought had been given to its programming.'
Google Now Expects Chips To Design Themselves
'What lay down there? Energy, tubes and pipes, wiring, transformers, self-contained machinery...'
PRAM Solar Powered Satellite Hardware Tested In Orbit
'Our beams feed these worlds energy drawn from... the Sun'
3D Printed Glass Uses Stereolithography Techniques
'All that with glass...'
Science Fiction Helps Young Readers Build Resiliency
'Reading science fiction and fantasy can help readers make sense of the world.'
I Want My 1928 Telestereo Hologram Now
'Instantly there appeared standing upon the disk, the image of a man...'
Memes Now Come From Neural Nets
'Your order said for him to be able to be able to work out twists on the gags in the file...'
Robot Dog Learns To Be Doggy From Real Dogs
'So we took pictures of Guzub making a Three Planets, and I could construct this one to do it exactly right down to the thousandth of a second.'
Unwanted Cruise Ships Huddle Together Out At Sea
'On the screen they passed in an endless, boundaryless flood of green specks...'
Sono Sion Electric Car Charges As You Drive
'It drew its power from six square yards of sunpower screens on its low curved roof.'
News Mood Filter Web Extension
'He adjusted the n, the r and b knobs, and hopefully anticipated a turn for the better...'
Fetal Lamb Rests In Artificial Womb
'... stewing warm on their cushion of peritoneum and gorged with blood-surrogate and hormones, the foetuses grew and grew...'
MIT Wants To Catch Interstellar Visitors
'INVESTIGATE MYSTERIOUS OBJECT ENTERING NEW CALEDONIA SYSTEM FROM NORMAL SPACE'
AutoX Sets Up Asia's Largest Robotaxi Center
'The robot cab seemed to know where it was going and, no doubt, the master machine from which it received its signals knew.'
E - Ink's Automatic Self Styling Color-Changing Dress
'The racks of gowns itched and quivered, their colors running into blurred pools.'
More SF in the News Stories
More Beyond Technovelgy science news stories