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Research & Technology News

Metamaterials Observe Photonic Spin Hall Effect
BERKELEY, Calif., March 22, 2013 — A metamaterial surface constructed of V-shaped gold nanoantennas was used to obtain the strongest signal yet of the photonic spin Hall effect — a quantum mechanical optical phenomenon that could play a prominent role in the future of computing.
Unconventional Use of EMCCD Sharpens Images
DALLAS, March 22, 2013 — Sharper microscopic images may be in sight with a new method that uses standard low-light electron multiplying CCD (EMCCD) cameras in a highly unconventional setting to reduce noise and minimize image deterioration.
Wang to Study Cellular Oxygen Consumption Under NSF Grant
ST. LOUIS, March 22, 2013 — To determine a cell’s metabolism, scientists need to know how much oxygen it consumes, but current technology limits this study to groups of cells, not individual cells. Now, Dr. Lihong Wang plans to change that.
Tests Underscore Potential Hazards of Laser Pointers
GAITHERSBURG, Md., and ORLANDO, Fla., March 21, 2013 — Of the 122 laser pointers tested recently by the National Institute of Standards and Technology, nearly 90 percent of the green pointers and about 44 percent of the red were out of compliance with federal safety regulations, the agency reported...
Electrical Signals Dictate Optical Properties
SOUTHAMPTON, England, March 20, 2013 — A new type of metamaterial that can be controlled by electrical signals has optical properties that are three orders of magnitude faster than previous electrically reconfigurable materials.
QDs Boost Protein Pinpointing in Cancer Cells
SEATTLE, March 20, 2013 — Understanding a single cell at its molecular level could better aid in the diagnosis and treatment of cancer. The development of a quantum dot color-coding method that illuminates 100 biomarkers in a single cell could do just that, boosting the...
Tailored Photons Generated from Solid-State Chips
CAMBRIDGE, England, March 20, 2013 — A technique to generate single photons with tailored properties from laser-quality solid-state devices could bring us a step closer to a quantum “Internet.”
Multicore Process Simplifies Fiber Splicing
ANAHEIM, Calif., and DUNCAN, S.C., March 19, 2013 — A new automated process simplifies the alignment and splicing of optical fibers and can bundle multiplexed fibers consisting of up to 19 cores and up to 19 times the signal-carrying capacity.
Ultrahigh-Speed Communications Sets Efficiency Record
ANAHEIM, Calif., and YORKTOWN HEIGHTS, N.Y., March 19, 2013 — Ultrafast supercomputers that operate at speeds 100 times faster than current systems may now be one step closer to reality.
OSA Announces 17 Award Recipients for 2013
WASHINGTON, March 18, 2013 — A terahertz quantum cascade device, laser materials based on laser-active transition metal and rare-earth ions, and a concept for plasmonic cloaking are among the winners of The Optical Society’s (OSA) 2013 awards.
Plugged Polymer Holes Boost Laser Potential
RALEIGH, N.C., March 18, 2013 — Plugging the holes of a polymer called MEH-PPV prevents light from leaking out, providing a low-cost way to enhance the material for use in photonic devices.
Endoscope Prototype Is Small as a Human Hair
STANFORD, Calif., March 15, 2013 — Some patients dread endoscopy more than the potential diagnosis — but a new prototype is as small as a human hair. And it delivers resolution four times better than previous similar devices of similar design. The device could enable new methods in...
Evidence Grows for Higgs Boson Discovery
GENEVA, March 15, 2013 — The particle discovered last summer during experiments at the Large Hadron Collider (LHC) is looking more than ever like a Higgs boson, according to preliminary results released at the Moriond Conference this week in La Thuile, Italy.
THz Pulses Damage DNA, Yet Induce Repair
EDMONTON, Alberta, Canada, March 14, 2013 — New research on lab-grown human skin suggests that short, powerful bursts of THz radiation may damage DNA, but also increase the production of proteins that help the body fight cancer.
Electronic Chips Heal After Laser Blasts
PASADENA, Calif., March 13, 2013 — Just as a Christmas tree’s lights go out when a single bulb dies, so, too, do electronic chips fail to work when a component stops functioning. A new self-healing integrated chip, however, could change all that, recovering from problems ranging from...
Boltasseva Honored by MRS for Novel Optics
WARRENDALE, Pa., March 12, 2013 — Alexandra Boltasseva, a Purdue University assistant professor who developed novel materials for advanced plasmonic, metamaterial and transformation optics devices, is the recipient of the 2013 Materials Research Society’s (MRS) Outstanding Young...
Organic Phototransistors Made with Nanowires
ULSAN, South Korea, March 12, 2013 — High-performance organic phototransistors (OPTs) based on single-crystalline n-channel organic nanowires could miniaturize electronic and optoelectronic devices, yielding higher light sensitivity than their bulk counterparts.
AFM-IR IDs Chemicals at Nanometer Scale
URBANA, Ill., March 11, 2013 — Atomic force microscopy (AFM) has been used to measure and characterize materials at the nanometer scale for more than two decades, but a new AFM technique now can measure a material’s chemistry and chemical composition.
Breast Cancer Laser Technique Faces First Human Trials
EXETER, England, March 8, 2013 — A laser diagnostic test, which ultimately could lead to an instant diagnosis of breast cancer at the time of a mammogram, will for the first time be evaluated using excised human breast tissue and lymph nodes. The study is being funded by a grant...
Flex-Grid Prevents Network Traffic Jams
BARCELONA, Spain, March 8, 2013 — A flexible-grid system that controls connections in optical networks can also redirect traffic to other networks, avoiding gridlock.
Material Converts Ultrasound Waves into Optical Signals
LONDON, March 7, 2013 — Ultrasound images have never looked sharper, thanks to a new metamaterial that converts ultrasound waves into optical signals, providing high-resolution images for biomedical applications.
Creator of GRIN LED Wins Lemelson-Rensselaer Student Prize
TROY, N.Y., March 6, 2013 — A doctoral student in materials science and engineering who developed a method to manufacture brighter, more energy-efficient LEDs is the recipient of the 2013 Rensselaer Polytechnic Institute (RPI) Lemelson-Rensselaer Student Prize.
Spectroscopy Method Could Lead to Better Optical Devices
PROVIDENCE, R.I., March 6, 2013 — A new spectroscopy method that takes advantage of a fundamental property of thin films — interference — could help make better use of these materials in optical devices like LEDs and solar cells.
IR Camera Detects Main Cause of Acid Rain
MADRID, March 5, 2013 — A new infrared camera that detects sulfur dioxide — a main cause of acid rain — and other pollutants could help scientists identify and control such emissions at an early stage, before significant damage is done.
Manipulating Light on Superconducting Chips
SANTA BARBARA, Calif., March 5, 2013 — Light manipulated on a superconducting chip using a switch that shapes released photons in different waveforms could forge new pathways to building the quantum devices of the future — including superfast and powerful quantum computers.

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