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NANO NEWS
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Optical Nanomodulator Produces Truly Digital Signals
ZURICH, Feb. 9, 2016 — Responding to the rapidly rising rate and volume of data, an optical modulator that operates at the individual-atom level could both reduce the size of and increase the efficiency of communication networks.  The switch is based on the voltage-induced displacement of one or more silver atoms in the narrow gap between a silver and a platinum plate. Courtesy of Alexandros Emboras/ETH Zurich.  Within these networks, components called modulators convert electrical signals into

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Silicon Metamaterials Hold Promise for Photonic Circuits, Chips
WEST LAFAYETTE, Ind., Feb. 5, 2016 — As data transmission technology seeks miniaturization, all-diaelectric, a silicon-based metamaterials may offer the necessary control of light through achievement of total internal reflectance. Researchers from Purdue University seek to engineer...
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Label-Free Virus Detection Method Integrates Optical Microscope, Fiber
JENA, Germany, Feb. 4, 2016 — A label-free technique has demonstrated the ability to detect freely diffusing viruses smaller than 20 nm. Although existing methods for detecting viruses such as confocal or fluorescence microscopy — which generally involve fixation and...

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Self-Assembling Fabrication Method Offers Alternative to Photolithography
CAMBRIDGE, Mass., Feb. 2, 2016 — Block copolymers — molecules that spontaneously self-assemble into useful shapes — are a promising alternative to photolithography techniques for manufacturing nanoscale circuits. Researchers from the Massachusetts Institute of...
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Triplet Exciton Energy Transfer Extends Lifetime
RALEIGH, N.C., Feb. 1, 2016 — A demonstration of the transfer of triplet exciton energy from semiconductor nanocrystals to surface-bound molecular acceptors has extended the lifetime of the originally prepared excited state by six orders of magnitude. The finding has...

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Glass Material Could Protect Electronics from UV Damage in Space
GUANGZHOU, China, Jan. 28, 2016 — A novel fabrication method has produced glass that protects living cells and organic dyes from UV damage, and could be used to shield electronics in space from the detrimental effects of UV radiation. Researchers from South China University of...
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Ultratech Inspection System Selected By Leading Foundry
SAN JOSE, Calif., Jan. 28, 2016 — The Superfast 4G+ inspection system from Ultratech Inc. has been selected by a leading foundry for the development of its 3D inspection and process control of its FinFET processes. Patented coherent gradient sensing technology enables the use of a...

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NIR-Activated Nanoparticle Therapy Suppresses Tumors
BOSTON, Jan. 25, 2016 — A nanoparticle drug-delivery system that combines photodynamic and molecular therapies has been shown to suppress tumor progress and metastatic outgrowth in animal models. The complementary treatment could improve outcomes and mitigate toxicity for...
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Graphene Enables Nanoelectromechanical Systems Integration
BARCELONA, Spain, Jan. 21, 2016 — Combining nanoelectromechanical (NEMS) systems with on-chip optics holds promise as a method to actively control light at the nanoscale, and now a hybrid system has overcome the challenges of integrating such nanoscale devices with optical fields...

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Standard Heatsinks Efficiently Cool Plasmonic Components
MOSCOW, Russia, Jan. 21, 2016 — A cooling system using high-performance thermal interfaces has been used to mitigate the heat generated in optoelectronic chips. Self-heating of active plasmonics, which limits achievable optical gain, has been a barrier to the development of...
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Photoactivated QDs Kill Antibiotic-Resistant ‘Superbugs’
BOULDER, Colo., Jan. 20, 2016 — A technique for treating bacterial infections has successfully used light-activated quantum dots (QDs) to kill multiple multidrug-resistant strains. The approach is adaptive to constantly evolving drug-resistant bacteria and avoids damage to...

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Nanoengraving Technique Uses Chemical Etching to Achieve 100-nm Resolution
MOSCOW, Russia, Jan. 19, 2016 — A femtosecond laser deposition mechanism has achieved patterns on glass with 100-nm resolution. The method could allow quick and inexpensive production of nanoscale sensors and chips. Institute of Chemical Physics abbreviation applied to glass....
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Metasurface Polarimeter Meets Telecom, Nanotechnology Demands
CAMBRIDGE, Mass., Jan. 11, 2016 — CAMBRIDGE, Mass., Jan. 11, 2016 — A novel architecture for in-line polarimeters enables monolithic, on-chip integration of polarization sensors for applications as varied as drug design and telecommunications, as well as for emerging...

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Metasurface Encodes IR Images
PALAISEAU, France, Dec. 28, 2015 — Irregular metasurfaces can be made to encode multiple images at IR frequencies in much the same way as the pixels in a television screen can form a visible-light image. This was demonstrated with an array of subwavelength metal-insulator-metal...
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Microscopic Laser Printing Method Could Hide Data, Simplify Production
LYNGBY, Denmark, Dec. 18, 2015 — A printing method using nanostructured surfaces and laser pulses has yielded a microscopic image with a resolution of 127,000 dots per inch. The color reproduction the Mona Lisa, created by researchers from the Technical University of Denmark...

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Dutch Nanophotonics Foundry Launches with University Partner
EINDHOVEN, Netherlands, Dec. 18, 2015 — Startup nanofabrication foundry Nanophab, a spinoff of Eindhoven University, has begun operations at the university with a goal of establishing its own facilities. The foundry will produce nanoscale-feature photonics products with advanced...
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Manta Secures Venture Funding for Optical System to Measure Nanoparticles
LA JOLLA, Calif., Dec. 14, 2015 — Manta Instruments Inc. has received venture funding to commercialize an optical device for quantifying and characterizing nanoparticles in solution. Caller ViewSizer 3000, the device is based on technology developed by Dariusz Stramski and Kuba...

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Nanostructured Thin Films Boost Optoelectronics' Efficiency
CHAMPAIGN, Ill., Dec. 10, 2015 — A antireflection coating allows LEDs, solar cells and sensors to capture light without hampering the flow of electricity, which could increase efficiency in such optoelectronic devices. Developed at the University of Illinois at Urbana-Champaign,...
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Computer Chips Measured Using Optical Scatterfield Technique
GAITHERSBURG, Md., Dec. 7, 2015 — Using a microscope that combines standard through-the-lens viewing with scatterfield imaging techniques, researchers have accurately measured patterned features on a silicon wafer 30 times smaller than the wavelength of light. The achievement...

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Bridging Nanoparticles Creates Reversible Color Change for Displays
HOUSTON, Dec. 7, 2015 — A method for building tiny "drawbridges" could allow engineers to use standard electrical switching techniques to construct color displays from pairs of nanoparticles that scatter different colors of light. The chemical bridges can be created and...
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Technique Sinters Thin Films at Lower Temps
CORVALLIS, Ore., Dec. 4, 2015 — A revised approach to the process of photonic sintering could advance thin films for solar cells, flexible electronics, sensors and other printed technologies by decreasing the temperature required for fabrication. Sintering is the fusing of...

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Process Minimizes Contact Reflectance in Solar Cells
STANFORD, Calif., Nov. 30, 2015 — Electrical contacts take up 5 to 10 percent of the surface of conventional solar cells, reflecting sunlight and hampering power generation. A simple chemical reaction can cause those contacts to recede while exposing more of a cell's...
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UV Light Powers Nanosubmersible Motors
HOUSTON, Nov. 17, 2015 — Single-molecule machines that move through fluids with UV light-powered motors could someday carry cargo for medical and other applications. Microscopic machines with motors have been developed over the years, said Rice University professor James...

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Plasmonic Absorbers Capture Specific Wavelengths
DURHAM, N.C., Nov. 11, 2015 — An experimental fabrication technique has created perfect absorbers for small bands of the electromagnetic spectrum from visible light through the near-infrared. The technique could allow advanced thermal imaging systems to be produced more...
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'Invisible' Graphene Layer Protects Nanowires from Radiation Damage
WEST LAFAYETTE, Ind., Nov. 10, 2015 — Wrapping silver nanowires in a one-atom-thick layer of graphene protects the structures from radiation damage that has historically prevented their use on a commercial scale. "The damage occurs in medical imaging, in space applications and just...






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