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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)
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)
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)
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)
Blink, and the brain misses it
We would immediately notice if the outside world suddenly went dark every few seconds. But we rarely become aware of our blinks, even though they cause a similar reduction in the amount of light entering the eye. So why are we not aware of the frequent mini-blackouts caused by blinks? view more (2005-07-26)
Using invisibility to increase visibility
Research into the development of invisibility devices has spurred two physicists' thought on the behaviour of light to overcome the seemingly intractable problem of optical singularities which could soon lead to the manufacturing of a perfect cat's eye. view more (2008-12-01)
Chalmers first with integrated receiver for high frequency applications
As the first research group in the world, researchers at Chalmers have succeeded in combining a receiver for high frequencies with an antenna on a small chip. view more (2007-11-29)
It will be possible to predict earthquakes from space
The scientists of the Department of Physics, Moscow State University, have proposed to predict earthquakes by measuring polarization of the solar light that is reflected from the surface of the Earth. The small and cheap equipment, which the scientists have designed, can be placed on meteorological satellites. Polarization of solar light at... view more... (2001-01-17)
Optoelectronics Research Centre director awarded CBE
Professor David Payne, Director of the University of Southampton's Optoelectronics Research Centre (ORC), has been appointed a Commander of the Order of the British Empire (CBE) in the Queen's Birthday Honours announced on Saturday (12 June). Professor Payne has been recognised for his services to photonics. Professor Payne is an internationally... view more... (2004-06-14)
New coating is virtual black hole for reflections
Researchers have created an anti-reflective coating that allows light to travel through it, but lets almost none bounce off its surface. At least 10 times more effective than the coating on sunglasses or computer monitors, the material, which is made of silica nanorods, may be used to channel light into solar cells or allow more photons to surge... view more... (2007-03-05)
Family SUNday on Saturday
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Researchers link melanopsin gene to unexplored light detection system within the eye.
Discovery could explain why light keeps us awake and may lead to new treatments for disorders such as jet-lag and SAD. Researchers from Imperial College London, Johns Hopkins University, USA and Brown University, USA have discovered that melanopsin, a recently identified protein, plays a key role in a completely new light detection system in the... view more... (2003-01-08)
New Evidence on How our Eyes use Light to Manage our Body Clock - University of Surrey Groundbreaking Study Results
A new study published this week shows for the first time that the human eye is sensitive to short wave length visible light and transmits information to the body clock in a way that may make it possible to manipulate waking and sleeping rhythms. This new data, gained from a study carried out at the University of Surrey, might enable this type of... view more... (2001-08-20)
Larvae shun the light
Drosophila larvae avoid light during the foraging stage of their development. Research published in the open access journal BMC Neuroscience shows that both 5-HT (serotonergic) and corazonergic neurons have a role in regulating this behavior. view more (2009-06-23)
New Laser Technique Advances Nanofabrication Process
The ability to create tiny patterns is essential to the fabrication of computer chips and many other current and potential applications of nanotechnology. view more (2009-04-10)
New light shed on marine luminescence
The phenomenon of light emission by living organisms, bioluminescence, is quite common, especially in marine species. view more (2009-02-23)
Bright lights, not-so-big pupils
A team of Johns Hopkins neuroscientists has worked out how some newly discovered light sensors in the eye detect light and communicate with the brain. The report appears online this week in Nature. view more (2009-01-05)
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