News tagged with optical device

IBM's breakthrough chip technology lights the path to exascale computing

(PhysOrg.com) -- IBM scientists today unveiled a new chip technology that integrates electrical and optical devices on the same piece of silicon, enabling computer chips to communicate using pulses of light ...

Technology / Semiconductors

created Dec 01, 2010 | popularity 4.8 / 5 (56) | comments 7 | with audio podcast

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

Discovery brings new type of fast computers closer to reality

Physicists at UC San Diego have successfully created speedy integrated circuits with particles called "excitons" that operate at commercially cold temperatures, bringing the possibility of a new type of extremely ...

Physics / Optics & Photonics

created Sep 27, 2009 | popularity 4.5 / 5 (35) | comments 1

Using quantum methods to read classical memories offers surprising advantages

(PhysOrg.com) -- Currently, the data stored in classical digital memories such as CDs, DVDs, and barcodes is read by classical light. But as a new study shows, using quantum light to read these classical memories ...

Physics / Quantum Physics

created Mar 14, 2011 | popularity 4.8 / 5 (31) | comments 5 | with audio podcast feature

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

Researchers develop graphene supercapacitor holding promise for portable electronics

(PhysOrg.com) -- Electrochemical capacitors (ECs), also known as supercapacitors or ultracapacitors, differ from regular capacitors that you would find in your TV or computer in that they store substantially ...

Nanotechnology / Nanophysics

created Mar 15, 2012 | popularity 5 / 5 (25) | comments 30 | with audio podcast

Moving holograms: From science fiction to reality (w/ Video)

Remember the Star Wars scene in which R2D2 projects a three-dimensional image of a troubled Princess Leia delivering a call for help to Luke Skywalker and his allies? What used to be science fiction is now ...

Physics / Optics & Photonics

created Nov 03, 2010 | popularity 4.7 / 5 (25) | comments 8 | with audio podcast

Atomtronic transistor and diode could advance quantum computing

(PhysOrg.com) -- What if atoms could be used to perform the functions currently the province of electronic devices? The goal of atomtronics is to do just that by creating analogues to the common items found in electronic ...

Physics / Quantum Physics

created Oct 09, 2009 | popularity 4.6 / 5 (25) | comments 5 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

Holodesk prototype puts life in computers (w/ video)

(PhysOrg.com) -- A research project at Microsoft Research Cambridge has brought forth a prototype called Holodesk, which lets you manipulate virtual objects with your hand. You literally "get your hands on" ...

Technology / Hi Tech & Innovation

created Oct 20, 2011 | popularity 4.7 / 5 (22) | comments 12 | with audio podcast report

Graphene optical modulators could lead to ultrafast communications

(PhysOrg.com) -- Scientists at the University of California, Berkeley, have demonstrated a new technology for graphene that could break the current speed limits in digital communications.

Nanotechnology / Nanophysics

created May 08, 2011 | popularity 4.8 / 5 (18) | comments 16 | with audio podcast

Small optical force can budge nanoscale objects

(PhysOrg.com) -- Engineering researchers have used a very tiny beam of light with as little as 1 milliwatt of power to move a silicon structure up to 12 nanometers.

Nanotechnology / Nanophysics

created Nov 17, 2009 | popularity 4.9 / 5 (16) | comments 0

New organic material may speed Internet access

The next time an overnight snow begins to fall, take two bricks and place them side by side a few inches apart in your yard.

Physics / Optics & Photonics

created Mar 15, 2009 | popularity 4.7 / 5 (16) | comments 5

'Slow light' on a chip holds promise for optical communications

A tiny optical device built into a silicon chip has achieved the slowest light propagation on a chip to date, reducing the speed of light by a factor of 1,200 in a study reported in Nature Photonics (published online Septem ...

Physics / Optics & Photonics

created Sep 05, 2010 | popularity 4.7 / 5 (16) | comments 1 | with audio podcast