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NANO NEWS
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Embedded Crystals Could Advance Nano-Optoelectronics
DRESDEN, Germany, July 25, 2014 — Embedding “nearly perfect” semiconductor crystals in silicon nanowires solves a problem in the production of nano-optoelectronic components, according to a team of European researchers. The crystals — made of indium arsenide (InAs) — possess extremely high electron mobility and could be useful in improving silicon-based CMOS technology, the team said. To date, integrating such crystals into nanowires has been difficult because crystal lattice mismatch always...

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Laser ‘Drawing’ Could Improve Nanomaterials
SINGAPORE, July 23, 2014 — Lasers can “draw” patterns on nanomaterials, a technique that shows potential for improving the functionality of electronic and optoelectronic components. Research teams at the National University of Singapore, led by professor...
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Nano Sensor Enhances Bomb Detection
BERKELEY, Calif., July 21, 2014 — A new plasmon laser sensor can identify extremely minute concentrations of explosives, as well as explosives that are typically difficult to detect. “Optical explosive sensors are very sensitive and compact,” said Dr. Xiang...

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Video: Nanoantennas as Photo Film Boost Optical Data Storage
URBANA, Ill., July 18, 2014 — Nanoantennas can be used like traditional photographic film to record light at distances smaller than its own wavelength. This could mean big things for the future of optical data storage. To make the new pillar bowtie nanoantenna (pBNA)...
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Sensor Amplifies Molecule Signatures
HOUSTON, July 17, 2014 — A new spectroscopy technique can accurately identify the structure and composition of individual molecules. Researchers from the Rice University Laboratory for Nanophotonics (LANP) developed the device, which they said has the ability to...

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Touch Screens Repel Fluids, Cut Glare and Still Look Good
BARCELONA, Spain, July 17, 2014 — Touch screens with nanostructured surfaces that ward off glare, reflection and fluids could easily be mass-produced, according to researchers from the Institute of Photonic Sciences. In one study, the researchers demonstrated a highly...
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Nanopixels Drive Flexible, Extremely Hi-Res Displays
OXFORD, England, July 14, 2014 — Delving into the electrical and optical properties of phase-change materials has unveiled a new way to develop flexible, thin-film displays with extremely high resolution and low energy consumption. A team at the University of Oxford found...

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Lasers Used to Generate Electron Spin Currents
CHAMPAIGN, Ill., and EINDHOVEN, Netherlands, July 11, 2014 — Ultrashort laser pulses are being used to advance research into electron spin currents, a potential field for next-generation data storage. Electron spin, or angular momentum, is typically random and therefore produces no spin current,...
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Temicon, Holotools Merge
DORTMUND, Germany, July 9, 2014 — Temicon GmbH and holotools GmbH have merged to expand their portfolios of micro- and nanotechnologies produced with laser lithography. The companies will operate under the Temicon name, with holotools used as a trademark for products made...

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‘Metamirror’ Doubles Incident Light Frequency
AUSTIN, Texas, July 8, 2014 — A nanostructure produces nonlinear effects a million times greater than traditional, macroscale nonlinear crystals, according to a team of researchers from Texas and Germany. This “metamirror” could enable miniaturized laser...
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‘Nanojuice’ Aids Intestinal Imaging
BUFFALO, N.Y., July 8, 2014 — A cocktail of fluorescent dyes and nanoparticles could aid in the diagnosis of gastrointestinal ailments. Researchers at the University at Buffalo say their “nanojuice” enables detailed images of the small intestines in mice...

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Novel Photodetector Made from Zinc Nanostructure
BEIJING, July 7, 2014 — A nanoporous structure is laying the groundwork for a new type of photodetector. A team from the State Key Laboratory of Petroleum Resources and Prospecting at the China University of Petroleum has developed the new photodetector, made for...
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Metamaterial a One-Way Street for Visible Light
GAITHERSBURG, Md., July 2, 2014 — A structure based on hyperbolic metamaterials allows visible light to pass in only one direction, creating new possibilities for optical circuits and biosensing. Developed at the National Institute of Standards and Technology, the device...

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Magnetic Fields Control Liquid Crystals’ Optical Properties
RIVERSIDE, Calif., June 27, 2014 — A new technique that forms and controls magnetically responsive liquid crystals could be applied to many types of displays. Conventional liquid crystals, often used in electronic displays, are composed of tiny rod-like molecules....
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Femtosecond Lasers Used to Administer Drugs
OKINAWA, Japan, and DUNEDIN, New Zealand, June 26, 2014 — A system using femtosecond lasers in conjunction with nanotechnology enables targeted and controlled drug delivery, presenting treatment possibilities for Parkinson’s disease and other ailments. Existing drug delivery procedures...

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Nano-engineered Quantum Dots Push Solar Cell Efficiency
LOS ALAMOS, N.M., June 26, 2014 — A new approach to building quantum dots has shown considerable gains in generating photocurrent. This could potentially create a new generation of solar cells. In a new study, a team from the Center for Advanced Solar Photophysics (CASP) at...
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Polariton Waveguide Could Help Photonic Circuits
TOYOHASHI, Japan, 25 June 2014 — A low-loss thin-film waveguide for surface plasmon polaritons (SPPs) could aid the development of nanoscale photonic integrated circuits on silicon. Recent research has focused on using SPPs as signal carriers in nanoscale integrated...

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Career Award Funds CO2 Photocatalysis Study
HOUSTON, Texas, June 20, 2014 — Rice University professor Isabell Thomann has received a $400,000 Career Award from the National Science Foundation to study photocatalytic reactions that could reduce carbon dioxide emitted by power plants. Her five-year research project...
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Light-manipulating Nanobarrel Traps Molecules
CAMBRIDGE, England, June 20, 2014 — Lower-cost, more reliable diagnostic testing could be a light at the end of the nanophotonic tunnel … or barrel, in this case. A barrel-shaped molecular container called cucurbituril (CB) that acts as a mini test tube has been...

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More Efficient Solar Cells with a One-Step Process
HOUSTON, June 20, 2014 — A new one-step process for producing efficient antireflective materials could mean big things for solar cells. A cross section shows inverted pyramids etched into silicon with a chemical mixture. Images courtesy of the Barron Group/Rice...
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Nanofiber Fabrication Boosts Quantum Computing
COLLEGE PARK, Md., June 19, 2014 — A new approach to fabricating optical nanofibers could enable the next generation of quantum computing. These ultra-high-transmission fibers, developed by researchers at the University of Maryland’s Joint Quantum Institute, could act...

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More is Less: Increased Voltage Switches Off Microlasers
VIENNA, June 18, 2014 — Lasers that switch off when their pump power is increased could one day make viable optical switches and logic circuits. Researchers at the Vienna University of Technology, led by professor Stefan Rotter, have demonstrated the phenomenon...
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Evolutionary Modeling Optimizes Optical Cavities
LAUSANNE, Switzerland, ROCHESTER, N.Y., and PAVIA, Italy, June 17, 2014 — A new design approach based on an evolutionary algorithm has shown the way to photonic crystal nanocavities (PCNs) that trap light for several nanoseconds — longer than other similarly sized cavities. Using the evolutionary technique,...

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Swelling Sensor Detects Toxic Gas
CAMBRIDGE, Mass., June 17, 2014 — Those who work with hazardous substances could find an extra measure of protection in an optical sensor that puffs up in the presence of even trace amounts of toxic gases. Made from a 400-nm-thick film of polymethyl methacrylate (PMMA), the...
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Antenna-free THz Detector Uses Nanotube Thin Films
ALBUQUERQUE, N.M., HOUSTON and TOKYO, June 13, 2014 — Carbon nanotube-based detectors that reveal light in the terahertz frequency range without cooling could lead to significant improvements in medical imaging, airport screening and food inspection. A team from Sandia National Labs has begun...






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