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Research & Technology News
Microlens Arrays from a Test Tube
POTSDAM, Germany, March 22, 2012 — Simple calcium carbonate precipitation at ambient conditions can produce microlens arrays of uniform size and focal length, a cheaper alternative to lithographic techniques for making inorganic-based materials.
NIF Fires Record-Setting Laser Shot
LIVERMORE, Calif., March 22, 2012 — The 192 lasers fired in unison at the National Ignition Facility this week delivered a record 1.875 million joules of ultraviolet laser light to its target chamber, exceeding NIF’s original design specification and setting the stage for...
Proteins Shine a Brighter Light on Cellular Processes
GRENOBLE, France, March 22, 2012 — A molecule capable of emitting turquoise light within living cells three times brighter than ever achieved could improve the sensitivity of cellular imaging.
Laser ‘Unprinter’ Vaporizes Toner
CAMBRIDGE, England, March 21, 2012 — A laser device that vaporizes photocopied ink from paper could soon be in offices worldwide.
Laser-assisted Camera Images Around Corners
CAMBRIDGE, Mass., March 21, 2012 — Using reflections from a non-mirrored surface, a new ultrafast time-of-flight imaging technique recovers 3-D shapes hidden from sight, essentially allowing the camera to capture images around corners.
Optical Drive Etches Graphene Supercapacitors
LOS ANGELES, March 21, 2012 — The search for an optimal electrochemical capacitor has been held up by the need for an electrode with energy density comparable to that of a battery. A novel graphene-based electrode, produced with a standard LightScribe DVD optical drive, could...
Simulations Shed Light on Dark Solitons
XI’AN, China, March 20, 2012 — The occurrence of multiple solitary optical waves, called dark photovoltaic spatial solitons, has now been described in a theoretical model using the beam propagation method.
Attosecond Laser Takes Aim at Holy Grail of Chemistry Research
LONDON, March 19, 2012 — Ultrafast pulses of laser light have been fired at oxygen, nitrogen and carbon monoxide molecules and could pave the way toward imaging the movement of atoms and their electrons as they undergo chemical reactions — one of the holy grails of...
IR Material Creates Holograms
DURHAM, N.C., March 19, 2012 — A newly developed metamaterial construct could create holograms in the infrared range for the first time.
Laboratory Lightning Strikes More than Twice
PALAISEAU, France, March 16, 2012 — With the help of a laser-based lightning rod, laboratory-generated lightning was coaxed to strike the same place not just twice but numerous times, and contrary to the path of least resistance. This advance demonstrates the potential of laser-based...
Cold Atoms in an Optical Lattice Simulate Graphene
ZURICH, March 15, 2012 — A tunable system of ultracold atoms was used to create a honeycomb-like structure similar to that found in graphene. The results may help identify the electronic properties of materials that have yet to be discovered.
Optical Clock Gets New Pendulum
BRAUNSCHWEIG, Germany, March 15, 2012 — An optical clock based on ytterbium ions is so accurate that, if such a timepiece were in use since the universe began, it would now only be off by about 30 seconds.
Optical Material Tailored from DNA
MUNICH, March 14, 2012 — Nanostructured materials built from artificial DNA molecules can modify light in very specific ways and could lead to the development of superlenses.
Controlling Weeds with Lasers
HANNOVER, Germany, March 13, 2012 — Weed growth can now be impaired using an exact carbon dioxide laser beam in the infrared range to destroy the plants’ sensitive growth centers, called meristems.
Fiber Laser Points to Woven 3-D Displays, Medical Tools
CAMBRIDGE, Mass., March 13, 2012 — A multidirectional fiber laser could herald flexible 3-D displays and medical tools that activate therapeutic compounds with bursts of light.
Two-Photon Lithography Prints in Fine Detail
VIENNA, March 13, 2012 — A new 3-D printing technology uses two-photon lithography to rapidly create detailed objects on the nanoscale. The technique, which is orders of magnitude faster than similar devices, opens up new areas of application, such as medicine.
Probe Method Reveals Rapid Phase Transitions
NASHVILLE, Tenn., March 12, 2012 — As materials undergo phase transitions, ultrafast “sonograms” are revealing the dynamic changes in trillionth-of-a-second intervals.
Tsunami Mapped with Laser Scanners
SENDAI, Japan, March 12, 2012 — Using eyewitness video and terrestrial lasers to map the March 2011 Tohoku tsunami that devastated Japan could produce flooding forecasts that influence future evacuation plans and building designs, helping to prevent future disasters from taking...
Femtolaser Pulse Creates 3-D Nanostructures
CAMBRIDGE, Mass., March 9, 2012 — A new fabrication process using femtosecond lasers creates 3-D nanostructures in materials, an essential step toward creating invisibility cloaks and other advanced materials that bend light in unusual ways.
Petal-Shaping Inspires Photopatterning Tool
AMHERST, Mass., March 9, 2012 — Drawing inspiration from nature’s ability to shape a petal, a new tool to manufacture three-dimensional shapes easily and cheaply was created using photolithography and printing techniques. The method could advance robotics, tunable micro-optics and...
Optical Chipset Transfers 1 Terabit of Information
LOS ANGELES, March 8, 2012 — A prototype optical chip that uses light rather than electrons sent over wires is the first parallel optical transceiver to transfer data at 1 Tb/s — the equivalent of downloading 500 high-definition movies.
Star Comb Joins Quest for Other Earths
GAITHERSBURG, Md., March 8, 2012 — A new laser frequency comb soon may be able to determine whether life on other planets really exists.
Sweet Spot Found in Organic Solar Cells
GAITHERSBURG, Md., March 8, 2012 — A better fundamental understanding of how to optimize a cell’s performance could bring organic solar cells a step closer to market.
Camera Captures Atoms Moving in a Molecule
COLUMBUS, Ohio, March 7, 2012 — Using ultrafast laser pulses to knock one electron out of its natural molecular orbit as a kind of "flashbulb" to illuminate molecular motion, a team from Ohio and Kansas state universities recorded the first real-time image of two atoms vibrating...
Spectroscopy Reveals Breast Tumors Early
WEST LAFAYETTE, Ind., March 7, 2012 — Mimicking living breast tissue through the new Raman-based imaging tool of vibrational spectral microscopy reveals subtle changes and can could help assess a woman’s breast cancer risk.
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