News tagged with electrical circuits

Scientists first to observe plasmons on graphene

With a beam of infrared light, scientists have sent ripples of electrons along the surface of graphene and demonstrated that they can control the length and height of these oscillations, called plasmons, using ...

Jun 20, 2012
4.6 / 5 (10) 5 | with audio podcast

Simulation software optimizes networks

By the year 2020, thousands of kilometers of new grids will be operating in Germany to permit even more extensive use of power from renewable sources. However, these new "smart grids" also come with increased complexity, ...

Apr 05, 2012
not rated yet 1

Writing graphene circuitry with ion 'pens'

The unique electrical properties of graphene have enticed researchers to envision a future of fast integrated circuits made with the one-carbon-atom-thick sheets, but many challenges remain on the path to commercialization. ...

Mar 27, 2012
4.7 / 5 (3) 1

Electrical circuits talk to single atoms

(PhysOrg.com) -- If a practical quantum computer is ever to be realized, conventional electronic devices will have to interface with the delicate quantum systems such as atoms or ions in traps or wisps of ...

Mar 06, 2012
5 / 5 (4) 2 | with audio podcast

Ultra-fast photodetector and terahertz generator

Photodetectors made from graphene can process and conduct light signals as well as electric signals extremely fast. Within picoseconds the optical stimulation of graphene generates a photocurrent. Until now, ...

Jan 31, 2012
4.9 / 5 (10) 0 | with audio podcast