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light News
Imager Detects Bruised Fruit
DRESDEN, Germany, Oct. 22, 2008 -- Ever bought what you thought was a unblemished apple or peach, only to have it develop a nasty-looking bruise the next day? Well, researchers at the Fraunhofer Institute for Photonic Microsystems (IPMS) in Dresden feel your pain, and have developed an affordable way to do something about it. Hyperspectral imaging can tip grocers off to which apriots or other fruits on display have been manhandled enough to develop blemishes that quicken their spoilage, but the equipment is very expensive. So...
New Optics Field Emerges
WEST LAFAYETTE, Ind., Oct. 16, 2008 -- A new research field called transformation optics may usher in a host of radical advances including a cloak of invisibility and ultrapowerful microscopes and computers by harnessing nanotechnology and "metamaterials." The field, which applies...
Proteins Controlled by Light
UNIVERSITY PARK, Pa., & DALLAS, Oct. 16, 2008 -- Scientists have discovered a way to use light to control the activity of certain proteins, which they said could one day let them turn off disease-causing aspects of proteins in cells. "This is one of the first examples of someone successfully...
Threats Won't Stop Collider
GENEVA, Sept. 9, 2008 -- Despite death threats, lawsuits, and even physicist Stephen Hawking betting against it, the Large Hadron Collider, the world's largest particle accelerator, will be turned on Wednesday. The LHC operates in a circular tunnel 27 km (16.7 miles) in...
Imagine Optic, ICFO to Build Multiphoton Imaging System
Sep 8, 2008 — French company Imagine Optic, a provider of Shack-Hartmann wavefront sensing technology, has teamed with the ICFO (Institut de Ciències Fotòniques, or Institute of Photonic Sciences) in Barcelona, Spain, to develop an ultrasharp multiphoton imaging...
Laser Comb is Ultraprecise
GARCHING, Germany, Sept. 5, 2008 -- A laser frequency comb, a new calibration technique that combines the incredible precision of an atomic clock with the sharp spectral features of laser light, has been used at a solar telescope to measure the sun's spectrum in infrared light. Such...
Seeing the Sky in 3-D
PAYERNE, Switzerland, Aug. 29, 2008 – Meteorologists in western Switzerland will now use light to detect temperature and humidity in the atmosphere. Designed by the École Polytechnique Fédérale de Lausanne (EPFL) and funded by the Swiss National Science Foudnation, the new Lidar...
Nanochain Faster Than Light
PHILADELPHIA, Aug. 20, 2008 – According to Einstein’s theory of relativity, the speed of light in a vacuum is the same for all observers, regardless of their relative motion or of the motion of the source of the light. In other words, this theory prohibits anything from moving...
Cancer Probe Trials Funded
AUSTIN, Texas, Aug. 19, 2008 -- A new grant will allow a researcher to continue developing and testing a device that uses light to detect skin cancer without the need for an invasive biopsy. University of Texas at Austin biomedical engineer James Tunnell has been awarded a...
Prism Awards Entry Deadline is Sept. 12
Aug 18, 2008 — The submissions deadline for the first annual Prism Awards for Photonics Innovation is Sept. 12. The competition, sponsored by SPIE and Laurin Publishing, is based on the theme that Invention + Commercialization = Innovation, and will recognize...
Light Project Awarded $1.5M
STANFORD, Calif., Aug. 5, 2008 -- A Stanford University researcher has received a $1.5 million grant to support his project aimed at using light to control a variety of cells. Dr. Karl Deisseroth, PhD, assistant professor of bioengineering and of psychiatry and behavioral...
QD Laser Maker Secures $13M
DORTMUND, Germany & SANTA CLARA, Calif., Aug. 5, 2008 -- Innolume, a maker of quantum dot (QD) -based lasers and laser modules, said it has secured approximately $13.3 million (€8.6 million) after a Series C funding round led by S-Group Capital Management. Innolume, which has facilities in Santa Clara...
Conical Refraction: The Forgotten Phenomenon
Aug 1, 2008 — The propagation of light along an optic axis of a crystal depends on the symmetry of the crystal. It is quite well-known that the beam does not change if the crystal is optically uniaxial; however, it undergoes a radical transformation if the...
Tight Squeeze on Light
BERKELEY, Calif., July 31, 2008 – Researchers at the University of California, Berkeley, have found a way to squeeze light through an opening that is only five times the width of a single piece of DNA. According to lead researcher, Xiang Zhang, mechanical engineering professor at UC...
Corning Selling Steuben
CORNING, N.Y., July 24, 2008 -- Specialty glass and ceramics maker Corning Inc. said it will sell its 90-year-old Steuben glass division to a private equity company for an undisclosed amount. Corning said it will maintain a nearly 20 percent ownership stake in Steuben Glass...
Wrong Laser Aimed at Crowd
ORLANDO, Fla., July 24, 2008 -- A powerful pulsed laser intended for overhead use only was pointed into a crowd attending a music festival outside Moscow earlier this month, allegedly causing retina damage in dozens of people. A pulsed laser can be up to 100 times more powerful...
Subsurfaces Seen Sharply
LAUSANNE, Switzerland, July 21, 2008 -- The high penetration power of x-rays has been combined with diffraction imaging to create a novel x-ray microscope that makes it possible, for the first time, to view the detailed interiors of semiconductor devices and cellular structures. The...
Light Pulse Speed Record Set
GARCHING, Germany, July 2, 2008 -- Researchers have set a new record in ultrafast metrology, producing the first light pulses lasting only 80 attoseconds (a billionth of a billionth of a second). Electrons move at awesome speeds, so any observation of that motion has to also be...
Confocal Microscopy Enables Direct Observation of Photonic Nanojets
Jul 1, 2008 — If you shine a beam of light onto a sphere just a few microns in diameter, an unusual effect takes place: On the side opposite where the beam strikes, a local field enhancement shaped like a tiny jet tail appears. Called photonic nanojets, these...
Photonic Products Awarded Laser Diodes Contract
Jul 1, 2008 — Photonic Products Ltd. of Hertsfordshire, England, has been awarded an evergreen contract initially worth six figures to supply laser diodes to the telecommunications division of an unnamed technology company. The announcement was made yesterday by...
Crystals Key to Cloaking
CHAMPAIGN, Ill., June 30, 2008 -- Concentric rings of silicon photonic crystals have, in computer simulations, demonstrated an approximate cloaking effect, bringing scientists a step closer to making optical cloaking -- invisibility -- more practical. "This is much more than a...
Chad Stalker Joins Luminus Devices
Jun 25, 2008 — Luminus Devices announced today that it has hired LED lighting industry veteran Chad Stalker as director of product marketing for its illumination business. Stalker’s responsibilities will include expanding existing product lines and developing new...
First Excitonic ICs Built
SAN DIEGO, June 24, 2008 -- Physicists have assembled the first integrated circuits (ICs) that use excitons -- particles that emit a flash of light as they decay -- instead of electrons to ferry signals. These exciton-based transistors could be used in a new kind of computer...
Light Creates Tiny Patterns
PRINCETON, N.J., June 20, 2008 -- The old trick, practiced by schoolboys everywhere, of concentrating a beam of sunlight through a magnifying lens to ignite paper -- or an unfortunate ant -- has been given a new twist. By using a microscopic plastic bead in place of the lens and...
Light 'Cooks' Cancer Cells
DALLAS, June 17, 2008 -- A new way to kill cancer cells has been found by attaching cancer-seeking antibodies to tiny carbon tubes that heat up when exposed to near-infrared light. Biomedical scientists at the University of Texas (UT) Southwestern Medical Center and...
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June 2024
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