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Research & Technology News
IR Imaging Assures Rockets Hit Their Targets
ARLINGTON, Va., Nov. 30, 2011 — The Low-Cost Imaging Terminal Seeker (LCITS), a weapon prototype developed by the Office of Naval Research (ONR), successfully hit two high-speed boat targets during a recent test. ONR researchers produced LCITS, a suite of low-cost technologies that modify existing helicopter-borne rockets into precision-guided weapons. By adding an infrared imaging guidance section to 2.75-in. Hydra-70 rockets, the researchers are providing naval aviators with a new lethal capability. The Low-Cost...
Lasers Heat Electrons to Several Billion Degrees
DRESDEN, Germany, Nov. 30, 2011 — New high-power lasers can accelerate particles such as electrons and ions with intense, short pulses. This finding has attracted the interest of researchers, who are working out the details of the acceleration process that occurs when a laser beam...
Marking 10 Years of Adaptive Optics at the VLT
HEIDELBERG, Germany, Nov. 30, 2011 — In November 2001, the NACO instrument — recently added to the European Southern Observatory’s Very Large Telescope (VLT) in northern Chile — captured its first light. Since then, its ability to bring stellar objects into sharp...
Microscopy Technique Targets Solar Cells
PITTSBURGH, Nov. 30, 2011 — A new take on a microscopy technique could help in the design of more energy-efficient solar cells. Although current plastic solar cells are low in cost and easy to produce, they are not energy-efficient. Researchers at the University of Pittsburgh...
Smarter Way to Make UV Beams
ANN ARBOR, Mich., Nov. 30, 2011 — A better way to build compact ultraviolet (UV) light sources with low power consumption has been discovered using an optimized optical resonator, which could lead to improved information storage, microscopy and chemical analysis. Researchers...
A New Quantum State of Matter Unearthed
PITTSBURGH, Nov. 29, 2011 — Research on topological states to advance quantum computing — a method that harnesses the power of atoms and molecules for computational tasks — has revealed a surprising new topological semi-metal that could change the face of...
Blocked Holes Enhance Light Transmission
PRINCETON, N.J., Nov. 28, 2011 — Placing a metal cap over a small hole in a metal film does not stop light from passing through the hole, but rather enhances its transmission — quite contrary to the conventional thought that blocking a hole would allow less light to pass...
New Lighting Approach Is a Gas
WASHINGTON, Nov. 28, 2011 — Just as in a fluorescent light, a microcavity array (MCA) is energized by an applied voltage. By successfully confining plasma (an ionized gas) in parallel rows of microcavities within thin sheet materials, various implementations of microplasma...
NPP Satellite Acquires First VIIRS Image
GREENBELT, Md., Nov. 28, 2011 — The Visible Infrared Imager Radiometer Suite (VIIRS) onboard NASA’s newest Earth-observing satellite has acquired its first measurements, resulting in a high-resolution image of a broad swath of eastern North America from Canada’s Hudson...
TeraTOP Aims to Revolutionize THz Imaging
ZURICH, Nov. 28, 2011 — A true on-chip integrated camera under development will allow wider use of terahertz imaging technology for airline and other security operations. The main objective of the program — dubbed TeraTOP — is to develop a device that can...
Carbon Nanotube Forest Camouflages 3-D Objects
ANN ARBOR, Mich., Nov. 23, 2011 — One of the unique properties of carbon nanotubes — the low refractive index of low-density aligned nanotubes — also has a unique application: making 3-D objects appear as nothing more than a flat, black sheet. Researchers from the...
Doped Nanocrystals Developed for Bioimaging
SINGAPORE, Nov. 23, 2011 — A synthesis of lanthanide-doped core-shell nanocrystals has resulted in advanced light-control properties for bioimaging applications including cancer diagnostics, medical imaging and therapeutic delivery. A research team from the National...
Laser Ablation Could Benefit Precancerous Skin Lesions
CHICAGO, Nov. 23, 2011 — Carbon dioxide laser ablation could be used to treat a common precancerous skin lesion, lentigo maligna (LM), when surgery or radiation therapy is not feasible. “Carbon dioxide laser ablation may be advantageous because it treats large...
AFM Measures Mechanical Properties of Living Cells
WEST LAFAYETTE, Ind., Nov. 22, 2011 — A new atomic force microscope (AFM) technique that measures the mechanical properties of living cells could be used to diagnose human disease and better understand biological processes. Researchers from Purdue University and the University of...
New Material Emits Long-Lasting NIR Light
ATHENS, Ga., Nov. 22, 2011 — While visible-light emitters are commonplace, there has been little success in creating materials that emit light in the near-infrared (NIR) — until now. A new material developed at the University of Georgia emits a NIR glow for two...
EMCCD Camera Aids in Development of Solar Cells
BELFAST, Northern Ireland, Nov. 21, 2011 — A nondestructive technique to test silicon wafer solar cells could lead to higher solar cell efficiency and improved yield for photovoltaic panel manufacturers. An Andor Luca-R EMCCD camera images a solar module (1000 × 450 mm.(Image:...
Neutrino Study Contradicts Faster-Than-Light Findings
ROME, Nov. 21, 2011 — A new study contradicts findings earlier this fall that neutrinos could travel faster than light. At the end of September, scientists in the OPERA experiment at the Gran Sasso laboratory in Italy said neutrinos from Switzerland’s CERN research...
QD ‘Blinking’ Mystery Unravels
LOS ALAMOS, N.M., Nov. 21, 2011 — A significantly better understanding of why quantum dots blink, and how this blinking can be controlled and even completely suppressed, should lead to many sought-after applications, such as single-particle tracking, novel LEDs and single-photon...
Updated PDT Targets, Destroys Cancer Cells
BETHESDA, Md., Nov. 18, 2011 — A new form of photodynamic therapy dubbed photoimmunotherapy, or PIT, destroys cancer cells in mice without harming surrounding normal tissue. This light-based cancer therapy technique could theoretically work against tumors in humans, such as those...
Webb Optics Assembly Stand Is Complete
GREENBELT, Md., Nov. 18, 2012 — The giant structural steel frame on which the mirrors and instruments of the James Webb Space Telescope will be assembled at NASA’s Goddard Space Flight Center is now complete. “This milestone is important, as it marks the...
Let There Be Light...In a Vacuum
GOTHENBURG, Sweden, Nov. 17, 2011 — The quantum mechanical principle which states that a vacuum is not empty space, but instead teeming with particles that flit in and out of existence, has been observed for the first time as photons were coaxed to leave this virtual state and...
Multimodal Imaging Reveals Arterial Structure, Metabolism
BOSTON, Nov. 17, 2011 — A new device that combines optical frequency domain imaging (OFDI) and near-infrared fluorescence (NIRF) imaging can reveal both the detailed anatomy of arterial linings and the biological activities that might indicate the risk of heart attacks or...
‘Egg Crate’ Design for QD-LEDs Optimizes Performance
CAMBRIDGE, Mass., Nov. 16, 2011 — A new quantum-dot LED "egg crate" design is turning troublesome ligand molecules into a critical element that creates a more versatile QD-LED structure that could have applications in displays, lighting, and lasers.
NASA Decides Not to Kill the MESSENGER
ANNAPOLIS, Md., Nov. 16, 2011 — NASA’s Messenger mission will live on for at least one year past its planned expiry date. The spacecraft entered orbit around Mercury, the solar system’s innermost planet, on March 18 this year, and its primary mission had been scheduled...
Nanophotonics Reshapes Data Transmission
STANFORD, Calif., Nov. 15, 2011 — A new ultrafast nanoscale single-mode LED can transmit data at 10 billion bits per second and is thousands of times more energy-efficient than today’s laser-based systems. The new device operates at room temperature and could therefore...
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