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A Micro-Muscular Break Through

By Guest PostJanuary 13, 2014Scienceartificial muscles, berkeley lab, break through, carbon nanotubes, chromium, chun cheng, electronics industry, electrostatics, energy-efficient, helix, joonki suh, junqiao wu, kai liu, micro explosion, micro muscular, micro systems, milliseconds, motion, optical devices, pantheon of superstars, piezoelectrics, vanadium dioxide

Berkeley Lab Researchers Make a Powerful New Microscale Torsional Muscle/Motor from Vanadium Dioxide

Vanadium dioxide is poised to join the pantheon of superstars in the materials world. Already prized for its extraordinary ability to change size, shape and physical identity, vanadium dioxide can now add muscle power to its attributes. A team of researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) has demonstrated a micro-sized robotic torsional muscle/motor made from vanadium dioxide that for its size is a thousand times more powerful than a human muscle, able to catapult objects 50 times heavier than itself over a distance five times its length within 60 milliseconds – faster than the blink of an eye. (more…)

Energy-momentum Spectroscopy: New Technique Could Improve Optical Devices

By Guest PostMarch 10, 2013Scienceangle, electronic excitations, energy momentum spectroscopy, grapheme, interference, jon schuller, keliang he, kymissis group, layered nanomaterials, leds, light absorbing devices, light emitting, molybdenum disulfide, mos2, new technique, optical devices, organic semiconductor, orientation of light, polarization, ptcda, rainbow colors, rashid zia, sinan karaveli, solar cells, source, theanne schiros, thin films, two dimensional material

Understanding the source and orientation of light in light-emitting thin films — now possible with energy-momentum spectroscopy — could lead to better LEDs, solar cells, and other devices that use layered nanomaterials.

PROVIDENCE, R.I. [Brown University] — A multi-university research team has used a new spectroscopic method to gain a key insight into how light is emitted from layered nanomaterials and other thin films.

The technique, called energy-momentum spectroscopy, enables researchers to look at the light emerging from a thin film and determine whether it is coming from emitters oriented along the plane of the film or from emitters oriented perpendicular to the film. Knowing the orientations of emitters could help engineers make better use of thin-film materials in optical devices like LEDs or solar cells. (more…)

Made in IBM Labs: Breakthrough Chip Technology Lights the Path to Exascale Computing

By Guest PostDecember 1, 2010Technologychip technology, cmos, cmos integrated silicon nanophotonics, computer chips, electrical, electrical signals, exaflop, ibm, nanophotonics, nanophotonics technology, optical devices, pulses of light, scientists, silicon, silicon nanophotonics, t c chen, terabits, yurii a vlasov

*IBM Silicon Nanophotonics uses optical signals to connect chips together faster and with lower power*

Yorktown Heights, N.Y. – 01 Dec 2010: 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 (instead of electrical signals), resulting in smaller, faster and more power-efficient chips than is possible with conventional technologies.

The new technology, called CMOS Integrated Silicon Nanophotonics, is the result of a decade of development at IBM’s global Research laboratories. The patented technology will change and improve the way computer chips communicate – by integrating optical devices and functions directly onto a silicon chip, enabling over 10X improvement in integration density than is feasible with current manufacturing techniques. (more…)

Tag Archives: optical devices

A Micro-Muscular Break Through

Energy-momentum Spectroscopy: New Technique Could Improve Optical Devices

Made in IBM Labs: Breakthrough Chip Technology Lights the Path to Exascale Computing