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Light

A research team at Singapore’s Nanyang Technological University (NTU) has successfully used a laser to cool down a semiconductor material known as Cadmium Sulfide. The results of the recently published study could lead to the development of self-cooling computer chips and smaller, more energy efficient air conditioners and refrigerators that don't produce greenhouse gases. Read More
Structural color, which is the foundation that makes things like a peacock's tail feathers appear iridescent, has been an area of study for scientists as they try to adapt it for use in everyday technologies – only without the “rainbow effect” that makes the colors unstable depending on the angle of view. Now, Researchers at the University of Michigan have mimicked the peacock's color mechanism in an approach that could lead to high resolution reflective color displays and have implications for data storage, cryptography and counterfeiting. Read More

For many of us, the last thing we do before going to bed is to plug in and charge the smartphone. There are occasions, though, when fatigue gets the better of you and this important task gets forgotten until all the lights are out. That's where the USB Micro Light charging cable comes into the picture. Read More

New York City-based Mpowerd introduced the Luci solar-powered inflatable lantern earlier this month. The lantern folds like an accordion and shines with the force of 10 LED bulbs. Its integrated solar panels also means you should never have the hassle of switching out batteries. Read More

Over the past few years, blue light has allowed us to understand heart problems, control brain functions, and activate muscle tissue. Now, another biomedical function can be added to its list – because it’s known to have antimicrobial qualities, it’s been used to stop infections of the skin and soft tissues. Read More
The two Star franchises (Wars and Trek) and countless science fiction movies have given generations of armchair space travelers an idea of what to expect when looking out the window of a spaceship making the jump to light speed. But it appears these views are – if you’ll excuse the pun – a bit warped. Four students from the University of Leicester have used Einstein’s theory of Special Relativity to calculate what Han and Chewie would actually see as they made the jump to hyperspace. Read More
Fireflies ... they’ve allowed us to image the bloodstream and they’ve inspired the creation of a light that could run on waste. Now, they’ve helped an international team of scientists get over 50 percent more light out of existing LED bulbs. The secret lies in the insects’ scales. Read More
When it comes to a light meal, Victor Vetterlein's "BITE ME" desk lamp has got you covered. The body of the brightly colored creation is made from bio-plastic that can be safely consumed at the end of its useful life. If eating lamps doesn't start your digestive juices flowing, the frame can also be thrown in the compost. Either way, the rather attractive electronics strip can be peeled away from the body and re-used elsewhere. Read More
Left to its own ways, light will follow the same path through an optical system whether the system is being used as a camera lens or as a projector. This is called time-reversal symmetry, or reciprocity. As many new applications and methods would be enabled by access to a non-reciprocal optical system, it is unfortunate that they have been so difficult to come by. But now researchers at Stanford University have discovered how to make such non-reciprocal systems by generating an effective magnetic field for photons. Read More
It’s taken a few years, but the LED light glasses developed at Australia’s Flinders University that first attracted our attention back in 2003 are finally seeing a commercial launch. Now called Re-Timer, the wearable device emits a soft green light onto the eyes to reset the body’s internal clock to counter jet lag, improve the alertness of shift workers and make waking up in the morning easier. Read More
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