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News articles about "Optical"

New form of carbon: Grossly warped 'nanographene'

Carbon, carbon
Chemists at Boston College and Nagoya University in Japan have synthesized the first example of a new form of carbon the team reports in the most recent online edition of the journal Nature Chemistry The ... - Read More

Trapping T-rays for better security scanners

Structure, Structure
Medical diagnostic and security scanners with higher sensitivity could result from University of Adelaide research into detecting T rays terahertz waves Published in the journal Advanced Optical Materials the researchers describe a novel structure which ... - Read More

A new way to trap light: Phenomenon could lead to new types of lasers and sensors

Light, Light
There are several ways to trap a beam of light usually with mirrors other reflective surfaces or high tech materials such as photonic crystals But now researchers at MIT have discovered a new method to ... - Read More

Putting more science into the art of making nanocrystals

Preparing semiconductor quantum dots is sometimes more of a black art than a science That presents an obstacle to further progress in for example creating better solar cells or lighting devices where quantum dots offer ... - Read More

Designer droplets open new possibilities

By designing droplets using electricity researchers have created a technique that could possibly be used for everything from extracting oil from wells to creating makeup and food You've seen Hollandaise sauce or mayonnaise that has ... - Read More

Laser system allows determination of atomic binding energy of the rarest element on Earth

Atomic, System
The radioactive element astatine the name of which is derived from the Greek word for 'instability ' is so rare on Earth that it has not yet been investigated to any greater extent and as ... - Read More

Antifreeze, cheap materials may lead to low-cost solar energy

Solar energy
A process combining some comparatively cheap materials and the same antifreeze that keeps an automobile radiator from freezing in cold weather may be the key to making solar cells that cost less and avoid toxic ... - Read More

New low-cost, transparent electrodes

Indium tin oxide ITO has become a standard material in light emitting diodes flat panel plasma displays electronic ink and other applications because of its high performance moisture resistance and capacity for being finely etched ... - Read More

Thin-film diamonds: Applying diamond coatings at lower temperatures expands options for electronic devices

A new method for creating thin films of diamonds which is described in the journal Applied Physics Letters produced by AIP Publishing may allow manufacturers to enhance future electronics In industrial and high tech settings ... - Read More

Tiny nanocubes help scientists tell left from right

Chiral
In chemical reactions left and right can make a big difference A left handed molecule of a particular chemical composition could be an effective drug while its mirror image right handed counterpart could be completely ... - Read More

Autonomous energy-scavenging micro devices will test water quality, monitor bridges, more

Water, Water, Water
Out in the wilds or anywhere off the grid sophisticated instruments small enough to fit in a shirt pocket will one day scavenge power from sunlight body heat or other sources to monitor water quality ... - Read More

DNA brings materials to life: DNA-coated colloids help create novel self-assembling materials

Materials, materials
A colloid is a substance spread out evenly inside another substance Everyday examples include milk styrofoam hair sprays paints shaving foam gels and even dust mud and fog One of the most interesting properties of ... - Read More

New quantum dot technique combines best of optical and electron microscopy

Microscopy
It's not reruns of The Jetsons but researchers working at the National Institute of Standards and Technology NIST have developed a new microscopy technique that uses a process similar to how an old tube television ... - Read More

Polymer nanoreactors create uniform nanocrystals

nanocrystals, Polymer
Using star shaped block co polymer structures as tiny reaction vessels researchers have developed an improved technique for producing nanocrystals with consistent sizes compositions and architectures including metallic ferroelectric magnetic semiconductor and luminescent nanocrystals The ... - Read More

World's first large(wafer)-scale production of III-V semiconductor nanowire

Semiconductor, Semiconductor, Semiconductor
Researchers from Ulsan National Institute of Science and Technology UNIST South Korea and University of Illinois U S A developed the large scale heteroepitaxial growth III V nanowires on a Si wafer The research team ... - Read More

Catching individual molecules in a million with optical antennas inside nano-boxes

molecules, Nano
A single cell in our body is composed of thousands of millions of different biomolecules that work together in an extremely well coordinated way Likewise many biological and biochemical reactions occur only if molecules are ... - Read More

Whispering light hears liquids talk

Light, Light
Ever been to a whispering gallery a quiet circular space underneath an old cathedral dome that captures and amplifies sounds as quiet as a whisper Researchers at the University of Illinois at Urbana Champaign are ... - Read More

Specifically sized gold nanoparticle spheres increase the sensitivity of a light-based chemical detector

A sensor that relies on reflected light to analyze biomedical and chemical samples now has greater sensitivity thanks to a carpet of gold nanoparticles Xia Yu of the A*STAR Singapore Institute of Manufacturing Technology along ... - Read More

New microfluidic method expands toolbox for nanoparticle manipulation

Researchers at the University of Illinois at Urbana Champaign have developed a new flow based method for manipulating and confining single particles in free solution a process that will help address current challenges faced by ... - Read More

Increased NMR/MRI sensitivity through hyperpolarization of nuclei in diamond

Nuclei, Diamond, MRI
Today's nuclear magnetic resonance NMR and Magnetic Resonance Imaging MRI technologies like quantum information processing and nuclear spintronic technologies are based on an intrinsic quantum property of electrons and atomic nuclei called spin Electrons and ... - Read More
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