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Research & Technology News

Polymer Lens Nearly Identical to Human Eye Lens
CLEVELAND, Nov. 14, 2012 — A multilayered polymer gradient refractive index (GRIN) lens inspired by the human eye could one day provide a more natural alternative to implantable eye lenses and consumer vision products.
Theorists Propose Using Heat to Power QCLs
INNSBRUCK, Austria, Nov. 14, 2012 — What if you could use the heat generated in a quantum cascade laser — something that normally causes the lasing to turn off — to power the device instead?
CERN Detector to Measure Supershort Light Pulses
VIENNA, Nov. 13, 2012 — Conventional measurement techniques soon will be too slow to measure phenomena taking place on timescales faster than an attosecond. To measure such light pulses, scientists have proposed a method to create the world’s most precise stopwatch.
X-ray Laser Supercharges Atoms
MENLO PARK, Calif., Nov. 13, 2012 — Using a single flash from the world’s most powerful x-ray laser, researchers at SLAC have stripped a record number of electrons from xenon atoms, creating a “supercharged,” strongly positive state at energies previously thought too low.
Enhanced Cloaking Device Eliminates Reflections
DURHAM, N.C., Nov. 12, 2012 — A new technology refines the original invisibility cloak by eliminating the reflections at the edges of the device that result in lost waves — one of the key issues preventing complete invisibility. The enhanced metamaterial could revolutionize...
Supercheap Hydrogen Recipe: Sunlight + Water + Rust
LAUSANNE, Switzerland, Nov. 12, 2012 — Water and rust have been used to produce hydrogen from sunlight supereconomically, a team from École Polytechnique Fédérale de Lausanne (EPFL) reports.
Canada Develops Silicon Photonics ‘Action Plan’
QUEBEC CITY, Nov. 9, 2012 — A national action plan is under way to help Canadian companies exploit the commercial potential of silicon photonics — a market that is expected to grow to more than $2 billion by 2015.
Nanocrystals Improve Hydrogen Production
ROCHESTER, N.Y., Nov. 9, 2012 — Adding nanocrystals can make the light-driven production of hydrogen more robust and cost-effective, a team at the University of Rochester discovered.
Project Aims to Up Broadband Capacity 2000 Percent
BANGOR, Wales, Nov. 8, 2012 — Broadband technology has gained increasing speed over recent years, and now it could become 2000 times faster — and for the same price!
Quantum ‘Kiss’ Changes Color of Space
CAMBRIDGE, England, DONOSTIA-SAN SEBASTIÁN, Spain, and PARIS, Nov. 8, 2012 — Just as a little boy blushes when a girl ever so slightly brushes his cheek with her lips, so, too, does the minute gap between nanosize gold spheres flush red as electrons jump from one side to the other.
Sensor Reads Single Photons Ultrafast
DUISBURG, Germany, Nov. 7, 2012 — In imaging, every single photon counts, and now, thanks to an ultrasensitive sensor, those individual photons can be read within a few picoseconds, yielding high-quality images even in extremely low-light situations.
Unscrambling Scattered Light to Retrieve Sharp Images
ENSCHEDE, Netherlands, and FLORENCE, Italy, Nov. 7, 2012 — A noninvasive method that unscrambles scattered light to retrieve sharp images of objects hidden behind an opaque screen could have important applications in biological tissue imaging.
Laser-Light Testing Helps Detect Spreading Cancer
BALTIMORE, Nov. 6, 2012 — A tissue-penetrating, laser-light-enhanced microscope accurately analyzes distinctive patterns of ultrathin collagen fibers in breast tumor tissue samples, which could help detect cancer’s spread.
Matsuura Named OSA Senior Science Adviser
WASHINGTON, Nov. 6, 2012 — Anne Matsuura, former chief executive of the European Theoretical Spectroscopy Facility (ETSF) in Belgium, has been named senior science adviser at The Optical Society (OSA), the organization announced Monday.
Photons Observed as Particles, Waves Simultaneously
BRISTOL, England, and NICE, France, Nov. 5, 2012 — It is well-known that photons can act like waves or particles, depending on how they are measured experimentally. But they have never been seen exhibiting both behaviors at the same time — until now. The particle-wave theories of light were...
Physics Billboard 'Enlightens' Travelers
LONDON, Nov. 6, 2012 — A vital but little-known physics equation that has led to much of the technological development of the modern world is piquing the curiosity of travelers as they make their way through West London.
Virus-Sized Laser Defies Diffraction Limit
EVANSTON, Ill., Nov. 6, 2012 — The bow tie is a popular shape for pasta and maybe soon it will be for lasers, too. Single-laser devices the size of virus particles operate at room temperature and defy the diffraction limit, thanks to a lasing cavity composed of 3-D bow-tie-shaped...
Fluorescence Microscopy Given New Power
URBANA, Ill., Nov. 5, 2012 — A new method that studies the critical process of cell transport dynamics at multiple spatial and temporal scales has revealed properties of diffusive and directed motion transport in living cells.
DNA Origami Nanolenses to Visualize Single Molecules
BRAUNSCHWEIG, Germany, Nov. 2, 2012 — Overlapping plasmonic fields, created by positioning two gold nanoparticles on DNA origami, form a nanolens that acts as a nanoantenna capable of enhancing the fluorescent emission of a single molecule, researchers in Germany report.
Self-Assembling Particles Could Advance Optics
CAMBRIDGE, Mass., Nov. 2, 2012 — Microparticles engineered to self-assemble spontaneously, much as atoms form into molecules, could lead to enhanced optical displays and speedier computer chips, investigators say.
3-D Stress Map Reveals Embryonic Heart Defects
CLEVELAND, Nov. 1, 2012 — Stresses induced in an embryonic heart by blood flow have been visualized for the first time in 3-D using an optical coherence tomography (OCT) method. The technique could provide new insight into how and why heart defects develop.
A Magnetic Field for Photons
STANFORD, Calif., Nov. 1, 2012 — A photonic crystal device that tames the flow of free-moving photons with synthetic magnetism could enable scientists to precisely steer light in any direction.
Lasers improved for standoff sensing
EVANSTON, Ill. – A new resonator design that controls both wavelength and beam quality enables the purest, brightest and most powerful beams ever from a single-mode infrared quantum cascade laser. The work improves the accuracy of the devices, critical for boosting...
Plasmon wave propagates for 80 µm with no diffraction
CAMBRIDGE, Mass. — A needlelike beam of light that propagates for an unprecedented distance of 80 µm without spreading could greatly reduce signal loss for on-chip optical systems and might eventually aid development of more powerful microprocessors. The...
Record pulse provides new tool for observing quantum mechanics
ORLANDO, Fla. – The young field of attosecond science marked a significant milestone recently with the generation of the shortest laser pulse to date – 67 attoseconds. The record, achieved by Dr. Zenghu Chang and colleagues at the University of Central...

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