News tagged with cloaking devices

Pentagon-backed 'time cloak' stops the clock (Update)

Pentagon-supported physicists on Wednesday said they had devised a "time cloak" that briefly makes an event undetectable.

Physics / General Physics

created Jan 04, 2012 | popularity 3.1 / 5 (64) | comments 43 | with audio podcast

Invisibility cloak that generates virtual images gets closer to realization

(PhysOrg.com) -- In a twist on the concept of an invisibility cloak, researchers have designed a material that not only makes an object invisible, but also generates one or more virtual images in its place. ...

Physics / General Physics

created Apr 02, 2010 | popularity 4.5 / 5 (31) | comments 6 | with audio podcast feature

'Space-time cloak' to conceal events revealed in new study

(PhysOrg.com) -- The study, by researchers from Imperial College London, involves a new class of materials called metamaterials, which can be artificially engineered to distort light or sound waves. With conventional ...

Physics / Optics & Photonics

created Nov 16, 2010 | popularity 4.3 / 5 (27) | comments 12 | with audio podcast

Light speed hurdle to invisibility cloak overcome by undergraduate

(PhysOrg.com) -- An undergraduate student has overcome a major hurdle in the development of invisibility cloaks by adding an optical device into their design that not only remains invisible itself, but also has the ability ...

Physics / General Physics

created Aug 09, 2011 | popularity 4.9 / 5 (22) | comments 30 | with audio podcast

New invisibility cloak allows object to 'see' out through the cloak

(PhysOrg.com) -- "Many groups have been working devices that make objects invisible," Che Ting Chan tells PhysOrg.com. “Most of these devices, however, encompass the object to be cloaked.” Chan, a scientist at The Hong K ...

Physics / General Physics

created Mar 13, 2009 | popularity 4.2 / 5 (23) | comments 13 feature

Next generation cloaking device demonstrated

A device that can bestow invisibility to an object by "cloaking" it from visual light is closer to reality. After being the first to demonstrate the feasibility of such a device by constructing a prototype ...

Physics / General Physics

created Jan 15, 2009 | popularity 4.6 / 5 (19) | comments 10

New findings promising for 'transformation optics,' cloaking

Researchers have overcome a fundamental obstacle in using new "metamaterials" for radical advances in optical technologies, including ultra-powerful microscopes and computers and a possible invisibility cloak.

Physics / General Physics

created Aug 04, 2010 | popularity 5 / 5 (14) | comments 0 | with audio podcast

Nanocups brim with potential: Light-bending metamaterial could lead to superlenses, invisibility cloaks

Researchers at Rice University have created a metamaterial that could light the way toward high-powered optics, ultra-efficient solar cells and even cloaking devices.

Nanotechnology / Nanophysics

created Mar 13, 2009 | popularity 4.8 / 5 (13) | comments 2

A 'cloaking device' -- it's all done with mirrors

(PhysOrg.com) -- Somewhat the way Harry Potter can cover himself with a cloak and become invisible, Cornell researchers have developed a device that can make it seem that a bump in a carpet -- or, indeed, ...

Physics / Optics & Photonics

created May 13, 2009 | popularity 3.8 / 5 (16) | comments 6

A New Cloaking Method: This is not a 'Star Trek' or 'Harry Potter' Story (w/ Video)

(PhysOrg.com) -- University of Utah mathematicians developed a new cloaking method, and it's unlikely to lead to invisibility cloaks like those used by Harry Potter or Romulan spaceships in "Star Trek." Instead, ...

Physics / General Physics

created Aug 17, 2009 | popularity 4.4 / 5 (13) | comments 5

'Mirage-effect' helps researchers hide objects (w/ video)

Scientists have created a working cloaking device that not only takes advantage of one of nature's most bizarre phenomenon, but also boasts unique features; it has an 'on and off' switch and is best used underwater.

Nanotechnology / Nanophysics

created Oct 04, 2011 | popularity 4.5 / 5 (11) | comments 9 | with audio podcast

Physicists demonstrate a time cloaking device

Physicists Moti Fridman and colleagues at Cornell University have successfully demonstrated a so-called time cloaking device that is able to “hide” time for 15 trillionths of a second. In a paper published on arXiv, the re ...

Physics / General Physics

created Jul 18, 2011 | popularity 4.2 / 5 (11) | comments 7 | with audio podcast report

Chemically assembled metamaterials may lead to superlenses

(PhysOrg.com) -- Nanomanufacturing technology has enabled scientists to create metamaterials -- stuff that never existed in nature -- with unusual optical properties. They could lead to "superlenses" able ...

Chemistry / Materials Science

created Nov 02, 2011 | popularity 5 / 5 (9) | comments 7 | with audio podcast

The art of invisibility and the perfect cat's eye

(PhysOrg.com) -- In recent years scientists have explored the impossible by developing invisibility or 'cloaking' devices, but can the same technology also help make things more visible?

Physics / Optics & Photonics

created Jun 30, 2009 | popularity 4.2 / 5 (10) | comments 7

Transform a ball into a rock -- or make it invisible -- using transformation optics

(PhysOrg.com) -- Science fiction and fantasy tales are full of the ability to "cloak" characters with invisibility. Whether it is a spaceship with a cloaking device, or a young wizard with an invisibility ...

Physics / General Physics

created Jul 09, 2009 | popularity 3.2 / 5 (13) | comments 7 feature