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Research & Technology News

Signals amplified by light alone
MINNEAPOLIS/ST. PAUL – The discovery that the force of light in a nanoscale switch is strong enough to move an optical waveguide without having to rely on the device’s mechanical structure could dramatically increase Internet download speeds while also consuming less power. The microscale optical device, developed at the University of Minnesota, uses the force generated by light to flop a mechanical light-based switch on and off at very high speeds. This development could lead to advances in computation and s...
Squeezed light measures moving target
TOKYO – A novel quantum mechanical squeezing technique that precisely tracks the phase of optical waveforms in motion has broken the standard limits for ultraprecise measurement by exploiting quantum lightwaves in a different way. In optical communications,...
Wearable sensor maps disasters on the fly
CAMBRIDGE, Mass. – A wearable sensor system that includes a stripped-down gaming camera and a laser rangefinder could give emergency responders a hand by digitally mapping hazardous environments on the fly. Developed at MIT, the device builds on previous research into...
18 Firms to Vie for $94M at Invest in Photonics
BORDEAUX, France, Nov. 30, 2012 — Eighteen emerging technology companies from around Europe have been selected to participate in a special funding session at the two-day international business partnering convention Invest in Photonics next month in Bordeaux, a growing industrial...
Implantable Silk Micromirrors Enhance Imaging
MEDFORD/SOMERVILLE, Mass., Nov. 30, 2012 — Silk-based implantable optics that significantly enhance tissue imaging can simultaneously enable photothermal therapy, monitor drug delivery and administer drugs.
Photon Funnel Captures Wider Spectrum of Sun’s Rays
CAMBRIDGE, Mass., Nov. 30, 2012 — A solar “funnel” that exploits materials under elastic strain could capture a wider spectrum of solar energy, providing a new way of harnessing photons for electricity.
Camera Images Aurora Hyperspectrally
SVALBARD, Norway, Nov. 29, 2012 — The first-ever hyperspectral pictures of the aurora borealis, or northern lights, revealed a previously unknown atmospheric phenomenon.
X-ray Laser Helps Fight Sleeping Sickness
MENLO PARK, Calif., Nov. 29, 2012 — A weak spot in the parasite that causes African sleeping sickness, a disease that kills an estimated 30,000 people each year, has been mapped using an x-ray laser, pinpointing a promising new target for treating the fly-borne illness.
Award Named for South Korea’s Optics Trailblazer
WASHINGTON, Nov. 28, 2012 — A new award established by The Optical Society (OSA) and The Optical Society of Korea (OSK) in honor of San Soo Lee, considered the "Father of Optics" in South Korea, will recognize individuals who have established or fostered optics and photonics...
Metamaterials Manipulate Light on a Microchip
UNIVERSITY PARK, Pa., Nov. 28, 2012 — Controlling light on a microchip is no easy feat, but new theoretical designs for miniaturized optical devices made of metamaterials may provide a solution.
Material Absorbs Nearly 100% of IR Light
CAMBRIDGE, Mass., Nov. 27, 2012 — An ultrathin, tunable device developed at Harvard absorbs 99.75% of infrared light on demand and, when activated, looks like a black blob to IR cameras. The near-perfect absorber could expand the possibilities for energy harvesting and thermal...
Raman Researchers Set a Trap to Cool Ions
BANGALORE, India, and MAINZ, Germany, Nov. 27, 2012 — Captured ions can be cooled, rather than heated, through contact with cold atoms, and these ion traps can store them in a stable condition for longer periods than previously demonstrated. The results could pave the way to experiments that generate...
‘Hyper’ Ramsey Excitation Confirmed
BRAUNSCHWEIG, Germany, Nov. 26, 2012 — Shining laser light onto atoms and molecules is the best way to obtain precise information about their inner structure, but light above a certain intensity can fundamentally change their energy levels. A group in Germany has demonstrated how to...
Tiny Probes Dramatically Boost Raman Signals
ST. LOUIS, Nov. 26, 2012 — Novel gold nanoparticles can goose the signal from Raman reporters, or molecules whose jiggling atoms respond to a probe laser by scattering light at characteristic wavelengths. The discovery could lead to better-targeted drug delivery and deeper...
Antenna on a Chip Zips Through 3-D ‘Free Space’
HOUSTON, Nov. 21, 2012 — A new micron-scale spatial light modulator (SLM) works in 3-D “free space” and runs orders of magnitude faster than those used in sensing and imaging devices, and it holds great potential for imaging, display, holographic, measurement and remote...
Laser Turns Scotch Tape into ‘Smart’ Claw
WEST LAFAYETTE, Ind., Nov. 21 — Sticky tape is indispensable this time of year for wrapping gifts, but it soon could be essential year-round for a very different purpose: collecting water samples for environmental testing. A simple laser micromachining process can make wispy...
Stuart Freedman, Renowned Nuclear Physicist, Dies
BERKELEY, Calif., Nov. 21, 2012 — Stuart Freedman, an investigator of fundamental physical laws and a nuclear physicist with Lawrence Berkeley National Laboratory and the University of California, Berkeley, died unexpectedly Nov. 9 while attending a conference in Santa Fe, N.M. He...
App Turns Laser Tweezers into Xbox ‘HoloHands’
DUNDEE, Scotland, Nov. 20, 2012 — Gaming enthusiasts, gather round. There’s a new app in town, and it lets you control optical tweezers from the palm of your hand.
Photonic Nanocrystals Convert Sunlight to Solar Steam
HOUSTON, Nov. 20, 2012 — Light-capturing nanoparticles so efficient at turning sunlight into heat have been shown to produce solar steam from nearly frozen water. Inventors of the new technology expect its first uses to be for sanitation and water purification in developing...
A 3-D Light Switch for the Brain
CAMBRIDGE, Mass., Nov. 19, 2012 — A new tool that delivers precise points of light to living brain tissue in three dimensions could one day help treat Parkinson’s disease and epilepsy; it could even aid in the understanding of consciousness and how memories form.
Mechanical Oscillator ‘Interprets’ Optical Signals
EUGENE, Ore., Nov. 15, 2012 — In quantum computing, getting different quantum systems, or nodes, to talk to each other is a significant challenge because each system communicates with photons of distinct wavelengths, or colors. But a “dark mode” that converts an optical field,...
Single-Cell Imaging Clarifies How Cells Tell Time
COLUMBUS, Ohio, and MONTREAL, Nov. 19, 2012 — A new imaging approach offers the first real-time visual evidence of how cells know when to enter the next phase of their development.
Controlling Caustics Choreographs Light
LAUSANNE, Switzerland, Nov. 16, 2012 — A new algorithm based on a well-known natural optical phenomenon called the caustic effect makes it possible to “paint” images using light and a curved surface. The technique holds potential for automobile headlights, projectors and architectural...
Photonics Prism Awards Finalists Offer Solutions for Pollution, Manufacturing, Brain Imaging, More
PITTSFIELD, Mass., and BELLINGHAM, Wash., Nov. 16, 2012 — Sensors for monitoring environmental toxins and detecting explosives, powerful new lasers for manufacturing, and tools for non-invasive imaging deep inside the brain are among finalists in nine categories for the 2013 Prism Awards for Photonics...
Photoswitch Affects Nerve Cells in Eye, Brain
CHICAGO, Nov. 16, 2012 — Light-sensitive molecules that stimulate a neural response in the cells of the retina and brain could be the first step toward overcoming degenerative eye diseases or quieting epileptic seizures.

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