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 -
Dune Fans! Metal-Organic Frameworks Make Science Fiction Real
'Dew collectors,' he muttered, enchanted by the simple beauty of such a scheme. - Frank Herbert, 1965.
Fungi-Infused Concrete Repairs Itself
'I noticed that curious mottled knots were forming, indicating where the room had been strained and healed faultily.'- J.G. Ballard, 1962.
3D Printed Graphene Aerogel - So Light!
'... light as cork and stronger than steel...' - Edgar Rice Burroughs, 1929.
Vantablack Now IMMEASURABLY Black
'a black coating now that’s ninety-nine percent absorptive...' - Doc Smith, 1934.
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.
IBM's Grain Of Sand Computer
'Our ancestors... thought to make the very sand beneath their feet intelligent...'
Liquid Metal Shape-Changing 'Soft Robotics'
'A mimetic poly-alloy... 'What the hell does that mean?''
The Hammock Caravan And Italo Calvino's Octavia
'Now I will tell you how Octavia, the spider-web city, is made.'
Super-Resolution Microscopy Provides '4D' Views
View the magnified interior of living cells.
Have I Seen The Tesla Roadster Story Before?
'Only it wasn't a vessel. It was an automobile...'
Watch 'Do You Trust This Computer' For Free Today
Thanks for making this available, Elon.
Self-Driving Car Ticketed
This just missed making my day.
Elon Musk Tweets Versions Of Clarke's Operation Cleanup
'Fortunately, the old orbital forts were superbly equipped for this task.'
Burner Generates Temporary Phone Numbers
'Interesting phone system he's got, by the way...'
Walmart’s Autonomous Robot Bees
Everyone loves bees.
EA Created AI That Taught Itself To Play Battlefield
Harmless fun for computer scientists.
Is Teleportation A Death Sentence?
'A long trail of dead, he thought, left across the stars...'
New Brain Scanner Lets You Move Around
'In Bob Arctor's living room his thousand dollar custom-quality cephscope crafted by Altec...'
Can An Entire Brain Be Simulated In A Computer?
'The miles of relays and photocells had given way to the spongy globe of platinum iridium about the size of the human brain.'
Physicists Try To Turn Light Into Matter
If E=mc squared, then... m=E/c squared!
Save Your Brain's Connectome, Upload Yourself Elsewhere
'You've got remote storage. How regular is the update?'
More SF in the News Stories
More Beyond Technovelgy science news stories