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News articles about "Light"

Hybrid energy transfer system mimics process responsible for photosynthesis

Scientists from the University of Southampton in collaboration with the Universities of Sheffield and Crete have developed a new hybrid energy transfer system which mimics the processes responsible for photosynthesis From photosynthesis to respiration the ... - Read More

Chip produces and detects specialized gas for biomedical analysis

A chip scale device that both produces and detects a specialized gas used in biomedical analysis and medical imaging has been built and demonstrated at the National Institute of Standards and Technology NIST Described in ... - Read More

New phase in iron-based superconductors discovered

Scientists at the U S Department of Energy's Argonne National Laboratory have discovered a previously unknown phase in a class of superconductors called iron arsenides This sheds light on a debate over the interactions between ... - Read More

Advanced light: Sending entangled beams through fast-light materials

Michael Lewis's bestselling book Flash Boys describes how some brokers engaging in high frequency trading exploit fast telecommunications to gain fraction of a second advantage in the buying and selling of stocks But you don't ... - Read More

Chemists challenge conventional understanding of how photocatalysis works

Photocatalysis catalysis assisted by light is a promising route to convert solar energy into chemical fuels Particularly appealing is the possibility to use photocatalysis to split water molecules into molecular hydrogen Although photocatalysis has been ... - Read More

Shaping ultrashort laser pulses: Laser light needs more bass

They shed light on atomic and molecular processes ultrashort laser pulses are required to study extremely fast quantum phenomena For years scientists have been trying to tune the shape of light waves so as to ... - Read More

New 'T-ray' tech converts light to sound for weapons detection, medical imaging

A device that essentially listens for light waves could help open up the last frontier of the electromagnetic spectrum the terahertz range So called T rays which are light waves too long for human eyes ... - Read More

Richest marine reptile fossil bed along Africa's South Atlantic coast is dated at 71.5 mya

A new study uses carbon isotope dating to determine the first precise age for this bed and ties the western coast of Africa to 30 million years of global geologic records Paleontologists at Southern Methodist ... - Read More

Emissions from forests influence very first stage of cloud formation

Clouds play a critical role in Earth's climate Clouds also are the largest source of uncertainty in present climate models according to the latest report of the Intergovernmental Panel on Climate Change Much of the ... - Read More

Growing camelina, safflower in the pacific northwest

on blowing dust emissions The Columbia Plateau of the Inland Pacific Northwest experiences significant windblown dust from excessively tilled agricultural lands Brenton Sharratt and William Schillinger found that adding camelina or safflower crops into a ... - Read More

Deformable mirror corrects errors

Very high power is needed to cut or weld using a laser beam But this creates its own problem the beam's energy deforms the mirrors that are focusing it to a point When this happens ... - Read More

Tricking the uncertainty principle: New measurement technique goes beyond the limits imposed by quantum physics

Caltech researchers have found a way to make measurements that go beyond the limits imposed by quantum physics Today we are capable of measuring the position of an object with unprecedented accuracy but quantum physics ... - Read More

Going beyond the surface: New tech could take light-based cancer treatment deep inside the body

Photodynamic therapy PDT is an effective treatment for easily accessible tumors such as oral and skin cancer But the procedure which uses lasers to activate special drugs called photosensitizing agents isn't adept at fighting cancer ... - Read More

Cameras and displays: Organic photodiodes for sensor applications

Powerful inexpensive and even flexible when they need to be organic photodiodes are a promising alternative to silicon based photodetectors They are used to improve light sensitivity in cameras and to check displays for homogeneous ... - Read More

Lighting the way to graphene-based devices

Graphene continues to reign as the next potential superstar material for the electronics industry a slimmer stronger and much faster electron conductor than silicon With no natural energy band gap however graphene's superfast conductance can't ... - Read More

Broadening the scope for synthesizing optically active compounds

Chiral compounds are increasingly important in chemical manufacturing They are distinguished by a special kind of asymmetry in their molecular structure Yutaka Ukaji and colleagues at Kanazawa University have now developed a method for desymmetrising ... - Read More

The promise of purple for enhanced bioimaging

Newly detected 'energy clustering' structures inside rare earth nanoparticles generate intense violet light which is ideal for studying photon induced transformations Labeling biomolecules with light emitting nanoparticles is a powerful technique for observing cell movement ... - Read More

Making it big: Metamaterial applications a step closer to reality

Metamaterials are engineered to interact with light and sound waves in ways that natural materials cannot They thus have the potential to be used in exciting new applications such as invisibility cloaks high resolution lenses ... - Read More

Exploring the magnetism of a single atom

Magnetic devices like hard drives magnetic random access memories MRAMs molecular magnets and quantum computers depend on the manipulation of magnetic properties In an atom magnetism arises from the spin and orbital momentum of its ... - Read More

Detecting trace amounts of explosives with light

University of Adelaide research may help in the fight against terrorism with the creation of a sensor that can detect tiny quantities of explosives with the use of light and special glass fibres Published in ... - Read More
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