Optics

Dark-field images provide more detail than ordinary x-ray radiographs and could be used to identify explosives in hand luggage, diagnose the onset of breast cancer or Alzheimer’s disease and pinpoint hairline cracks or corrosion in functional structures.

The issue has been that the wavelengths needed for dark-field images required sophisticated optics that could only be produced at facilities like the Paul Scherrer Institute (PSI)’s 300m-diameter, $200 million synchrotron. Now researchers at PSI and Ecole Polytechnique Fédérale de Lausanne in Switzerland have developed a novel method allowing dark-field images to be produced using ordinary x-ray equipment already in place in hospitals and airports around the world.

WAKEFIELD, Massachusetts, January 9 /PRNewswire/ --

- Industry Veteran Joins Emerging Leader in Infrared Night Vision Imaging Technology

NoblePeak Vision (http://www.noblepeak.com) announced today that Mike Decelle has joined the company as President and Chief Executive Officer. Decelle takes the reins from co-founder Cliff King, bringing 25 years of experience to NoblePeak with demonstrated leadership capabilities and success in both startup and large public companies. King moves into the Chief Operating Officer role to focus on new product development and manufacturing as NoblePeak rapidly approaches market introduction of its revolutionary night vision TriWave(R) camera cores in 2008.

Broadband access has transformed the economic potential of the internet but the ADSL technology that delivers broadband to homes over traditional copper telephone wires is reaching its limit of around 10 megabits per second. If we want speeds ten times faster we need to replace the copper with optical fibers.

Optical fibers carry signals with light rather than electricity. They have been used in telecommunications for many years, especially over ‘long-haul’ links such as transatlantic cables and other trunk routes. Professor Henri Benisty, of the Institute of Optics Graduate School near Paris, likens them to motorways, carrying a lot of traffic but with only a small number of entrances and exits.

Using ESO's Very Large Telescope, an international team of astronomers [1] has discovered a stunning rare case of a triple merger of galaxies. This system, which astronomers have dubbed 'The Bird' - albeit it also bears resemblance with a cosmic Tinker Bell - is composed of two massive spiral galaxies and a third irregular galaxy.

The galaxy ESO 593-IG 008, or IRAS 19115-2124, was previously merely known as an interacting pair of galaxies at a distance of 650 million light-years.

As a step towards designing tomorrow's super-fast optical communications networks, a Duke University-led research team has demonstrated a way to transfer encoded information from a laser beam to sound waves and then back to light waves again.

Swapping data between media like this would allow information to be captured and retained for very brief intervals. Data could be stored within pockets of acoustic vibration created when laser beams interact along a short strand of optical fiber, the team reported in Science.

The Duke experiments address a barrier to efforts at developing computer networks that can run on light instead of electrons.

CHARENTON-LE-PONT, France, December 6 /PRNewswire/ -- Essilor has strengthened its prescription laboratory network in Europe with the acquisition of majority stakes in Sinclair Optical Services and United Optical, two independent laboratories in the United Kingdom. The Company has also acquired Premier Optics, Inc., Gold Optical Enterprises, Inc. and GK Optical in the United States.

YOKOHAMA, Japan, November 13 /PRNewswire/ --

- Micrel and Firecomms To Preview New Joint Reference Design For Plastic Optical Fiber

Micrel, Inc. (Nasdaq: MCRL), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today announced that it will showcase a new Ethernet solution at Embedded Technology 2007. The new joint reference design for Plastic Optical Fiber (POF), which Micrel and Firecomms are jointly announcing, is based on Micrel's KSZ8041FTL transceiver and Firecomms' EDL300T Fiber Optic Transceiver. This new solution will preview for the first time at the show which will be held in Yokohama, Japan, at the Pacifico Yokohama, with Micrel exhibiting at Booth No. C-01, Nov. 14-16, 2007

A Princeton-led research team has created an easy-to-produce material from the stuff of computer chips that has the rare ability to bend light in the opposite direction from all naturally occurring materials. This startling property may contribute to significant advances in many areas, including high-speed communications, medical diagnostics and detection of terrorist threats.

A Princeton-led research team has created an easy-to-produce material from the stuff of computer chips that has the rare ability to bend light in the opposite direction from all naturally occurring materials.

HAMILTON, New Jersey, October 10 /PRNewswire/ --

- Company Adds Key Members to Senior Management Team

Energy Photovoltaics, Inc. (EPV), a thin-film photovoltaic module manufacturer with headquarters in New Jersey, USA, announced today a series of organizational and senior staff changes that reflect the new direction of the company. Approved by its Board of Directors and shareholders, Energy Photovoltaics, Inc., will now operate as EPV SOLAR, Inc., effective immediately.

EPV SOLAR announced six additions to the senior management team:

A tiny galaxy,SDSSJ0737+3216 (lens redshift 0.3223, source redshift 0.5812), nearly halfway across the universe and the smallest in size and mass known to exist at that distance, has been identified by an international team of scientists.

The scientists used data collected by NASA's Hubble Space Telescope and the W. M. Keck Observatory in Hawaii.