Posts Tagged ‘electrical engineering’

To trap a rainbow, slow down light

U. BUFFALO (US) — A new material that halts and absorbs light may lead to advances in solar energy, stealth technology, and other fields, experts report. Continue…

Monday, February 18, 2013 11:50 - 4 Comments

Science & Technology - Jan 8, 2013 16:48 - 1 Comment

Crystal power could shrink X-ray scanners

U. MISSOURI (US) — A compact source of radiation about the size of a stick of gum could one day be used to create inexpensive portable X-ray scanners. (more…)

‘Waveguide’ emits tiny point of light

CALTECH (US) — A new device can focus light into a point just a few nanometers across and may lead to next-generation applications in computing and imaging. (more…)

Science & Technology - Nov 28, 2012 10:25 - 0 Comments

For bendy circuits, ‘print’ on nanocrystals

U. PENNSYLVANIA (US) — Scientists have shown that they can “print” nanocrystals of the semiconductor cadmium selenide onto flexible plastics to form high-performance electronics. (more…)

Science & Technology - Nov 19, 2012 13:24 - 0 Comments

Tiny antenna speeds up light modulation

RICE (US) — A device that looks like a tiny washboard could beat the current commercial products used to manipulate infrared light. (more…)

Science & Technology - Jul 12, 2012 12:36 - 0 Comments

Terahertz scanner could see skin cancer

CORNELL (US) — A new method of generating terahertz signals on an inexpensive silicon chip could have applications in medical imaging and wireless data transfer. (more…)

Science & Technology - Jun 25, 2012 15:02 - 1 Comment

For super fast data, give light a twist

USC (US) — Twisted beams of light are able to transmit more than 85,000 times more data per second than broadband cable, a new study shows. (more…)

Science & Technology - May 2, 2012 16:14 - 0 Comments

No-fuss device delivers entangled photons

U. TORONTO (CAN) — A new device could move supercomputing out of the lab by making it faster and easier to produce a special class of photons. (more…)

Science & Technology - Apr 17, 2012 16:01 - 0 Comments

Low-cost solar cells from nanotube ‘forests’

RICE (US) — By replacing platinum with carbon nanotubes, researchers hope to make efficient solar cells at a fraction of the current cost for silicon-based solar cells. (more…)

Science & Technology - Apr 4, 2012 15:24 - 1 Comment

Give graphene a squeeze to get electricity

STANFORD (US) — To the long list of exceptional physical properties of graphene, engineers have added yet another: piezoelectricity. (more…)

Science & Technology - Mar 14, 2012 16:37 - 0 Comments

Submerged in liquid, graphene gets faster

VANDERBILT (US) — Researchers have found that submersion in liquid can overcome graphene’s Achilles’ heel—sensitivity to its electrical environment. (more…)

Spider silk conducts heat better than silicon

IOWA STATE (US) — In the search for organic heat conductors, researchers have discovered spider silks transfer heat better than silicon, aluminum, and pure iron. (more…)

Science & Technology - Feb 24, 2012 11:42 - 0 Comments

Rainbow polymer reveals true colors

U. BUFFALO (US) — A new rainbow-colored polymer could lead to handheld applications for color identification. (more…)

Swimming in blood, implant travels the body

STANFORD (US) — A new implant can propel itself though the bloodstream without batteries or wires and is small enough to fit through blood vessels. (more…)

Science & Technology - Feb 21, 2012 12:57 - 2 Comments

Tune graphene to rival silicon

NORTHWESTERN (US) — A new way to chemically alter graphene may lead to the creation of faster, thinner, flexible electronics. (more…)

Science & Technology - Feb 20, 2012 14:16 - 0 Comments

Tiniest ever transistor made from single atom

PURDUE (US) / U. MELBOURNE (AUS) — Physicists have built the smallest transistor ever built—in fact, the smallest transistor that can be built—using a single phosphorous atom. (more…)

Science & Technology - Feb 10, 2012 12:41 - 0 Comments

Gold nanoparticles relay signals down the line

RICE (US) — Tiny channels of gold nanoparticles may transmit electromagnetic energy that starts as light and propagates via “dark plasmons.” (more…)