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NIST photon detectors have record efficiency
Sensors that detect and count single photons, the smallest quantities of light, with 88 percent efficiency have been demonstrated by physicists at the National Institute of Standard and Technology (NIST).   view more (2005-06-02)

Optical wireless and broadband over power lines: High speed, secure Wi-Fi alternative
Penn State engineers have shown that a white-LED system for lighting and high data-rate indoor wireless communications, coupled with broadband over either medium- or low-voltage power line grids (BPL), can offer transmission capacities that exceed DSL or cable and are more secure than RF.   view more (2006-01-12)

Scoliosis in children detectable with ordinary light
Lateral curvature of the spine can now be detected without the use of X-rays. Tom Huysmans of K.U.Leuven's Department of Biomechanics and Graphic Design has developed a technique using ordinary light which approaches the precision of radiology. The technique is important for research into... view more (2004-06-11)

Light's Most Exotic Trick Yet: So Fast it Goes ... Backwards?
In the past few years, scientists have found ways to make light go both faster and slower than its usual speed limit, but now researchers at the University of Rochester have published a paper today in Science on how they've gone one step further: pushing light into reverse.   view more (2006-05-12)

Cancer diagnosis - the Star Trek way
A small portable optical tool that can simply be pointed at the body to detect cancerous cells or reveal how body tissue is being affected by laser or cryogenic therapy could one day be the result of research being carried out by laser physicists at Imperial College.   view more (2000-03-21)

UCF researchers' breakthrough may help industry create more powerful computer chips
A University of Central Florida research team has made a substantial inroad toward establishing extreme ultraviolet light (EUV) as a primary power source for manufacturing the next generation of computer chips.   view more (2006-10-12)

Efficiency boost makes solar cells more affordable
Solar energy could become more affordable following a breakthrough by UNSW scientists, who have boosted the efficiency of solar cell technology.   view more (2007-05-03)

Research Paper Illuminates How Light Pushes Atoms
A research paper published in the 18 August edition of the journal Physical Review Letters reveals a new effect in the fundamental way that laser light interacts with atoms.   view more (2006-08-21)

Mood Lighting: Penn Researchers Determine Role of Serotonin in Modulating Circadian Rhythm
Researchers at the University of Pennsylvania School of Medicine have determined how serotonin decreases the body's sensitivity to light and that exposure to constant darkness leads to a decrease in serotonin levels in the brain of fruit flies.   view more (2005-07-11)

Microfluidics and optical trapping integrated for the first time in new lab-on-a-chip research
Researchers at Cornell University for the first time have integrated optical functions with microfluidic ones, enabling the sorting of particles by light.   view more (2007-10-26)

Growing glowing nanowires to light up the nanoworld
The nano world is getting brighter. Nanowires made of semiconductor materials are being used to make prototype lasers and light-emitting diodes with emission apertures roughly 100 nm in diameter-about 50 times narrower than conventional counterparts.   view more (2006-05-26)

Nanocomposite labeled cancer cells can be targeted and destroyed using lasers
A nanocomposite particle can be constructed so that it has a mix of properties that would not otherwise happen in nature. By combining an organic matrix with metallic clusters that can absorb light, it is possible to incorporate such particles into cells and then destroy those targeted cells with a... view more (2007-05-21)

Warm water vibrates for longer
Dutch researcher Arjan Lock has investigated the behaviour of vibrating water molecules. Using ultra-short laser pulses, he found that hydrogen atoms in water molecules vibrate for longer at higher temperatures. This is abnormal because in the majority of substances a vibration lives shorter at... view more (2004-02-05)

Newly discovered galaxy cluster in early stage of formation is farthest ever identified
UC Irvine scientists have discovered a cluster of galaxies in a very early stage of formation that is 11.4 billion light years from Earth - the farthest of its kind ever to be detected.   view more (2008-04-01)

Helia Wraps-up Optical Coatings
A new Scottish multi-million pound photonics company is geared up for the future of telecommunications after securing a seven figure private investment deal. The investment has allowed Helia Photonics Ltd, a Heriot-Watt University spin-out to purchase the coatings division of Terahertz Photonics in... view more (2002-09-24)

Researchers at UC-Santa Barbara have built the world's first mode-locked silicon evanescent laser
Researchers at UC Santa Barbara have announced they have built the world's first mode-locked silicon evanescent laser, a significant step toward combining lasers and other key optical components with the existing electronic capabilities in silicon.   view more (2007-08-22)

Heavy smokers who cut back still take in more toxins than light smokers
University of Minnesota tobacco researchers have found that heavy smokers who reduce their number of daily cigarettes still take in two to three times more total toxins per cigarette than light smokers.   view more (2006-12-14)

Astronomers put quasars in their place
A team of UK astronomers, led by postgraduate student Ed Hawkins, has made a decisive step toward resolving an argument that has rumbled on in the astronomical community for decades. The scientists from the University of Nottingham have been investigating the properties of quasars and nearby... view more (2002-10-03)

With double frequency to deeper blue
Light transports data at high speed over fibre-optic networks. Light measures and creates images of large and small objects in scanners and microscopes. Light writes information onto all sorts of recording media and surfaces. The best-quality light is produced by lasers, which have meanwhile become... view more (2003-07-01)

Solar Games at Paranal
Cerro Paranal, home of ESO's Very Large Telescope, is certainly one of the best astronomical sites on the planet. Stunning images, obtained by ESO staff at Paranal, of the green and blue flashes, as well as of the so-called 'Gegenschein', are real cases in point.   view more (2008-05-05)

Large Area High Definition Television (HDTV) prototype based on Liquid Crystal on Silicon (LCoS) Light Valves.
The microsystems group TFCG/IMEC at the University of Gent has developed a large area High Definition Television (HDTV) prototype based on Liquid Crystal on Silicon (LCoS) light valves. This work is carried out in collaboration with the Taiwanese company TMDC. The LCoS HDTV is most suited for... view more (2003-04-30)

High Power Laser for Ultraviolet Light
An international team of scientists at the research center DESY recently succeeded in obtaining the maximum light amplification from a "free electron laser" (FEL) for ultraviolet radiation. The electron laser produced an amplification of 10 million - this corresponds to the theoretically expected... view more (2001-09-19)

ALIS a multi-eyed voyeur in a plasma universe
The Northern Lights are a visible result of physical processes in inner space. By studying the optical signal from the Northern Lights and similar phenomena, we can gain new knowledge about the physics behind them. In the long run such pure research may be of great importance for applications in... view more (2003-06-24)

Study discovers secret of Scottish sheep evolution
Researchers from the University of Sheffield, as part of an international team, have discovered the secret of why dark sheep on a remote Scottish Island are mysteriously declining, seemingly contradicting Darwin's evolutionary theory.   view more (2008-01-18)

A laser uncovers the logic of the stomata function
What you do is sometimes determined by what your neighbours do. Scientists believe that this extends to stomatal behaviour. Stomata are pores placed at the plant surface that allow gas exchange with the atmosphere.   view more (2006-12-21)
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