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Last updated on April 16, 2014 at 5:31 EDT

Latest Optics Express Stories

2009-08-18 13:20:00

A group of researchers in Australia and Taiwan has developed a new way to analyze the health of human teeth using lasers. As described in the latest issue of Optics Express, the Optical Society's (OSA) open-access journal, by measuring how the surface of a tooth responds to laser-generated ultrasound, they can evaluate the mineral content of tooth enamel -- the semi-translucent outer layer of a tooth that protects the underlying dentin.This is the first time anyone has been able to...

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2009-07-31 11:15:00

 Using a composite metamaterial to deliver a complex set of instructions to a beam of light, Boston College physicists have created a device to guide electromagnetic waves around objects such as the corner of a building or the profile of the eastern seaboard.As directed by the researchers' novel device, these beams continue to behave as if traveling in a straight line. In one computer simulation, Assistant Professor of Physics Willie J. Padilla and researcher Nathan Landy revealed the...

2009-07-20 13:46:48

Physicists at New York University have developed a technique to record three-dimensional movies of microscopic systems, such as biological molecules, through holographic video. The work, which is reported in Optics Express, has potential to improve medical diagnostics and drug discovery. The technique, developed in the laboratory of NYU Physics Professor David Grier, is comprised of two components: making and recording the images of microscopic systems and then analyzing these images. To...

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2009-02-06 09:25:00

Emerging field of astrophotonics shows promise in analyzing light from the night sky Future telescopes, with mirrors half the size of a football field, will need special components to deal with the light they collect. Astronomers are turning to photonic devices that guide and manipulate light inside specially-designed materials. The greatest potential, which is described in the latest issue of Optics Express, the Optical Society's (OSA) open-access journal, may lie in a laser-based technique...

2008-12-18 11:00:16

Special energy issue of Optics Express describes 'coming revolution' in LED lighting A revolution in energy-efficient, environmentally-sound, and powerfully-flexible lighting is coming to businesses and homes, according to a paper in latest special energy issue of Optics Express, the Optical Society's (OSA) open-access journal. The paper envisions the future of lighting -- a future with widespread use of light emitting diodes (LEDs), which offer a number of obvious and subtle advantages over...

2008-12-18 10:33:03

Optics Express research describes how tiny organism can make biofuel In pursuing cleaner energy there is such a thing as being too green. Unicellular microalgae, for instance, can be considered too green. In a paper in a special energy issue of Optics Express, the Optical Society's (OSA) open-access journal, scientists at the University of California, Berkeley describe a method for using microalgae for making biofuel. The researchers explain a way to genetically modify the tiny organisms, so...

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2008-04-14 11:10:00

Device on mountaintop takes first step toward manmade lightningA team of European scientists has deliberately triggered electrical activity in thunderclouds for the first time, according to a new paper in the latest issue of Optics Express, the Optical Society's (OSA) open-access journal. They did this by aiming high-power pulses of laser light into a thunderstorm. At the top of South Baldy Peak in New Mexico during two passing thunderstorms, the researchers used laser pulses to create plasma...