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Research & Technology News

Light’s Polarization States Measured Directly
ROCHESTER, N.Y., and OTTAWA, Ontario, Canada, March 4, 2013 — There may be a way around Heisenberg’s famous Uncertainty Principle, a law of the quantum world that says precise measurement is impossible.
Delicate systems observed with quantum physics
BARCELONA, Spain – Groups of photons prepared in certain quantum states can noninvasively probe ultrasensitive objects such as individual atoms or living cells, overcoming the standard quantum limit for the first time. The results from the Institute of Photonic...
Electrons Accelerated by Laser in a Vacuum
LOS ANGELES, March 1, 2013 — Accelerating a free electron with a laser has been a longtime goal of solid-state physicists, and now two UCLA scientists have demonstrated the acceleration of electrons by a laser in a vacuum.
FEL pulse temporal profile made in a FLASH
SAN SEBASTIÁN, Spain – The temporal profile of an individual free-electron laser (FEL) pulse now can be measured with femtosecond precision using FLASH, a soft-x-ray FEL. The technique could be used to film atoms in motion or to study chemical reactions and phase...
Hot graphite shines new light on laser-driven fusion
COVENTRY and OXFORD, England – A new strongly heated graphite experiment has left an international team of researchers with some unexpected results that may reveal secrets of giant planets, white dwarfs and laser-driven fusion. In an attempt to learn more about how energy is...
Incoming asteroid! Set lasers on “vaporize”
Mar 1, 2013 — As this issue went to press, an asteroid roughly half as large as a football field – and with energy equal to that of a large hydrogen bomb – readied for a flyby of Earth. A proposed system could eliminate a threat of this size in the...
Metallic “sandwich” boosts solar cell efficiency
PRINCETON, N.J. – A new combination of metal and plastic increases the efficiency of organic solar cells by 175 percent, making them more competitive with conventional silicon photovoltaics. The nanomesh structure, developed at Princeton University, traps and absorbs...
Microactuator flexes under laser light
BERKELEY, Calif. – A microscale actuator that flexes like a tiny beckoning finger under a burst of laser light may point toward practical applications in artificial muscles, microfluidics and drug delivery. The Lawrence Berkeley National Laboratory (Berkeley Lab)...
Nanomechanical fiber goes beyond light transmission
SOUTHAMPTON, England – A new dual-core optical fiber that can perform the functions of signal switches, routers and buffers by applying a minute amount of mechanical pressure could significantly enhance data processing and perform sensing functions in electronic devices....
Photonic FEL helps fingerprint drugs
ENSCHEDE, Netherlands – Combining a free-electron laser and a photonic crystal makes it easier to identify a drug than using chemical analysis. A terahertz laser can show the molecular structure of drugs because the beam it produces is at a wavelength suitable for...
Photons can sense each other
COPENHAGEN, Denmark – Photons can “sense” each other and coordinate their separate paths through a complex material, new research from the Niels Bohr Institute shows. The scientists demonstrated that photons emitted from a light source embedded in a complex...
Sandia Houses World’s Largest Fiber Optic Network
ALBUQUERQUE, N.M., March 1, 2013 — The largest fiber optic local area network in the world, pioneered by Sandia National Laboratories, is expected to reduce energy costs by 65 percent once the network is fully operational.
Sprinkled silver nanocubes enhance light absorption
DURHAM, N.C. – Just as salt sprinkled over a piece of meat enhances its flavor, tiny silver cubes sprinkled at random on a polymer-coated gold surface enhance the material’s ability to “perfectly” absorb light of a given wavelength. A simple...
The rise of the boson-sampling computer
OXFORD, England, and ST. LUCIA, Australia – Despite the widespread research on quantum computing, nobody has built a machine that uses quantum mechanics to solve a computational problem faster than a classical silicon-based computer. Now scientists from universities in England and Australia...
Unique waveguide provides pinpoint control of light
PASADENA, Calif.– A tunnel-like device that channels light effectively into a point just a few nanometers across may lead to next-generation applications in computing, communications and imaging. Beams of light are fantastic carriers of data. They can carry more...
US Science Community Braces for Budget Cuts
WASHINGTON, March 1, 2013 — As the $85 billion in automatic US government spending cuts known as a sequestration loom closer, the science community braces for the impact of severe cuts on basic scientific research.
Nanotube Detector a Promising Optoelectronic Device
HOUSTON, Feb. 28, 2013 — A nanotube-based photodetector that gathers light in and beyond visible wavelengths promises to make possible a unique set of optoelectronic devices, solar cells and maybe even specialized cameras.
Landmark Ireland Research Investment Includes Photonics
DUBLIN, Ireland, Feb. 27, 2013 — The largest-ever state/industry co-funded scientific research investment in Ireland — €300 million, or about $393 million — includes millions to establish a large-scale research center devoted to advancing photonics and biomedical...
Tingye Li to be Honored at OFC/NFOEC 2013
ANAHEIM, Calif., Feb. 27, 2013 — A special memorial symposium honoring the late Tingye Li will take place March 18 at the 2013 Optical Fiber Communication Conference and Exposition/National Fiber Optic Engineers Conference (OFC/NFOEC) in Anaheim.
IR Digital Holography Lets Firefighters See Through Flames
ROME, Feb. 26, 2013 — Finding a person hidden in a blazing, smoky fire should become a little easier for firefighters, thanks to a new lensless infrared digital holographic imaging technology that can “see” flames.
Virtual Photons Become Real in a Vacuum
ESPOO, Finland, Feb. 26, 2013 — By changing the position of a mirror inside a vacuum, virtual particles can be transformed into real photons that can be experimentally observed.
As Sequester Nears, OSA Organizes ‘Week of Action’
WASHINGTON, Feb. 25, 2013 — With across-the-board federal spending cuts — known as the sequester — set to take effect March 1, The Optical Society (OSA) announced Monday that it will organize a "week of action" for the scientific community.
Graphene Highly Efficient at Converting Light to Electricity
BARCELONA, Spain, Feb. 25, 2013 — Graphene is even more efficient at converting light to electricity than was previously known, making it an ideal building block for any device that relies on such conversions, a new international study has found.
Laser Spectroscopy Narrows Search for Origins of Superconductivity
UPTON, N.Y., Feb. 25, 2013 — The mechanism underlying high-temperature superconductivity has remained one of the most important and tantalizing puzzles in physics, but new research that measures fleeting electron waves could help solve the mystery and pave the way for rapid...
High-Speed Imager Developer Wins NSF Award
BALTIMORE, Feb. 22, 2013 — A Johns Hopkins engineer has won a National Science Foundation award for his work in developing a high-speed imaging system designed to continuously record images at a rate of more than 100 million frames per second — 100 times more rapidly than...

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