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Polarized Light Current Events | Polarized Light News | 4
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Through a light, darkly
A British physicist has come up with a way to reveal the shifting and shining colours that form in the dark spots where light waves interfere with each other. The patterns await experimental demonstration but computer-generated images are already illuminating new aspects of light that had until now remained in the shadows. When two waves meet... view more... (2002-10-18)
Neutron researchers discover widely sought property in magnetic semiconductor
Researchers working at the National Institute of Standards and Technology (NIST) have demonstrated for the first time the existence of a key magnetic-as opposed to electronic-property of specially built semiconductor devices. view more (2008-11-26)
Bright light therapy eases bipolar depression for some
Bright light therapy can ease bipolar depression in some patients, according to a study published in the journal Bipolar Disorders. view more (2008-01-04)
Precise picture of early Universe supports 'dark matter' theory
A detailed picture of the seeds of structures in the universe has been unveiled by an international team co-led by a Cardiff University scientist. view more (2009-11-03)
Squid 'sight': Not just through eyes
It's hard to miss the huge eye of a squid. But now it appears that certain squids can detect light through an organ other than their eyes as well. view more (2009-06-02)
Hyper-SAGE boosts remote MRI sensitivity
A new technique in Magnetic Resonance Imaging dubbed "Hyper-SAGE" has the potential to detect ultra low concentrations of clincal targets, such as lung and other cancers. view more (2009-10-12)
Tying light in knots
The remarkable feat of tying light in knots has been achieved by a team of physicists working at the universities of Bristol, Glasgow and Southampton, UK, reports a paper in Nature Physics this week. view more (2010-01-18)
Prize-winner emerges from the shadows
How can you measure the brightness of light? A book which examines the answers to this seemingly simple question has just won the 2003 Paul Bunge Award, the world's largest prize for research in the history of scientific instruments. The book, published in 2001 by Institute of Physics Publishing, is "A History of Light and Colour Measurement:... view more... (2003-11-04)
Lighting up the human brain at night
Most people are aware that light affects human behaviour and can be used to treat disorders such as Seasonal Affective Disorder, but now researchers from the University of Surrey and the University of Liege have found new evidence that light administered during the night immediately reduces sleepiness and boosts human brain function. These... view more... (2004-10-25)
G-Zero update
In research performed in Hall C, nuclear physicists have found that strange quarks do contribute to the structure of the proton. This result indicates that, just as previous experiments have hinted, strange quarks in the proton's quark-gluon sea contribute to a proton's properties. The result comes from work performed by the G-Zero collaboration,... view more... (2006-06-30)
Reflection makes Skin Cancer Diagnosis easier
A new way of detecting skin cancers using light reflected from pigmented skin lesions is described this week in the Institute of Physics journal, Physics in Medicine and Biology. Scientists from the Institute of Cancer Research and Royal Marsden Hospital NHS Trust studied the spectra of light reflected from skin lesions. As benign and malignant... view more... (2000-02-18)
Alternative therapies may help people with dementia
Aromatherapy and bright light treatment may have an important role in managing behavioural problems in people with dementia, conclude researchers in this week’s BMJ. view more (2002-12-04)
An 'eye catching' vision discovery
Nearly all species have some ability to detect light. At least three types of cells in the retina allow us to see images or distinguish between night and day. Now, researchers at the Johns Hopkins School of Medicine have discovered in fish yet another type of cell that can sense light and contribute to vision. view more (2009-07-27)
FSU biologists uncover mechanisms that shape cells for better or worse
In a landmark study, biologists at Florida State University have uncovered a specific genetic and molecular mechanism that causes cell polarity - the asymmetric shape or composition critical to a cell's proper functioning. view more (2006-08-17)
Daytime light exposure dynamically enhances brain responses
Exposure to light is known to enhance both alertness and performance in humans, but little is understood regarding the neurological basis for these effects, especially those associated with daytime light exposure. view more (2006-08-22)
Ultraviolet Light Reveals Secrets of Nanoscale Electronic Materials
An international team of scientists has used a novel technique to measure, for the first time, the precise conditions at which certain ultrathin materials spontaneously become electrically polarized. view more (2006-10-25)
Researchers improve ability to write and store information on electronic devices
ew research led by the U.S. Department of Energy's Argonne National Laboratory physicist Matthias Bode provides a more thorough understanding of new mechanisms, which makes it possible to switch a magnetic nanoparticle without any magnetic field and may enable computers to more accurately write and store information. view more (2007-09-14)
Researchers achieve long-sought goal of using lasers to break specific molecular bonds
A team of researchers has achieved a long-sought scientific goal: using laser light to break specific molecular bonds. view more (2006-05-19)
Blue light used to harden tooth fillings stunts tumor growth
A blue curing light used to harden dental fillings also may stunt tumor growth, Medical College of Georgia researchers say. view more (2008-06-25)
'Safety valve' protects photosynthesis from too much light
Photosynthetic organisms need to cope with a wide range of light intensities, which can change over timescales of seconds to minutes. view more (2009-11-30)
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