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(9,094 items)
Research & Technology News
Silicon Chips May Go 'Green'
SAN JOSE, Calif., Oct. 16, 2009 -- Harvesting optical energy currently lost through heat dissipation in optoelectronic devices could allow them to actually generate more power than they use and help make silicon chips and compound semiconductors more "green," said Sasan Fathpour, assistant professor of integrated photonics & energy solutions at the University of Central Florida's CREOL (College of Optics and Photonics), in a well-attended presentation during Frontiers in Optics 2009.
A Closer Look at Betelgeuse
CERRO PARANAL, Chile, Oct. 15, 2009 – Two independent teams of astronomers have obtained the sharpest-ever views of one of the biggest stars in the sky – a red supergiant called Betelgeuse. One of the most luminous stars known, Betelgeuse emits more light than 100,000 suns. But it is...
FiO: Notes from the Crucible
SAN JOSE, Calif., Oct. 15, 2009 – “Whoa, whoa, whoa,” I thought. “Whoa.” I had just stumbled across a page on the Frontiers in Optics Web site collecting blog postings about the (then) upcoming meeting. “We can’t have people just running around writing stuff for the Internet. About...
FiO: Notes from the Crucible
SAN JOSE, Calif., Oct. 15, 2009 – ‘Whoa, whoa, whoa,’ I thought. ‘Whoa.’ I had just stumbled across a page on the Frontiers in Optics website collecting blog postings about the (then) upcoming meeting. ‘We can’t have people just running around writing stuff for the internet. About...
Small (and Big) Talk at FiO
SAN JOSE, Calif., Oct. 15, 2009 -- The superbig and the supersmall were the subjects of two plenary sessions Monday at Frontiers in Optics 2009. In the first session, Andrea M. Ghez, professor of physics and astronomy at UCLA, a leading expert in observational astrophysics, explained...
Small (and Big) Talk at FiO
SAN JOSE, Calif., Oct. 15, 2009 -- The superbig and the supersmall were the subjects of two plenary sessions Monday at Frontiers in Optics 2009. In the first session, Andrea M. Ghez, professor of physics and astronomy at UCLA, a leading expert in observational astrophysics, explained...
Nanostrings Serve as Probes
GARCHING, Germany, Oct. 14, 2009 – New fabrication techniques have enabled the development of on-chip mechanical elements with dimensions on the nanometer scale. Their application, however, has been limited by the lack of sufficiently sensitive techniques for measuring the motion of...
Quantum Signatures of Chaos
TUCSON, Ariz., Oct. 9, 2009 – No one has produced experimental evidence that chaos occurs in the quantum world – the world of photons, atoms, molecules and their building blocks – until now. In a series of experiments, professor Poul Jessen and a group at the University of...
UV Curing Makes Inroads into PV Materials
Oct 9, 2009 — UV curing of polymers is well-known for many applications, including wood coatings, graphic arts, electronics and optics. In the photovoltaics (PV) industry, however, with some notable exceptions, UV curing has not been accepted commercially because...
360º IR Sensor Flown on UAS
Oct 8, 2009 — Lockheed Martin of Bethesda, Md., has announced that it has successfully tested a new infrared sensor turret aboard its Desert Hawk III unmanned aircraft system (UAS), marking the first time a small UAS has flown with a 360° IR sensor. According to...
Machine Mimics Human Vision
CHESTNUT HILL, Mass. Oct. 8, 2009 – Human vision is designed to look at the rough outlines of the various objects before examining the details. This improves the speed and accuracy of our image recognition, while machine vision typically performs the task in the opposite manner.
Seeing Inside a Living Cell
CAMBRIDGE, Mass., Oct. 8, 2009 – Electron microscopes are the most powerful type of microscope, capable of distinguishing even individual atoms. However, these microscopes cannot be used to image living cells because the electrons destroy the samples. Now, MIT assistant...
Light Travels a One-Way Road
CAMBRIDGE, Mass., Oct. 7, 2009 -- A new magnetic class of photonic crystals developed by physicists at MIT allows electromagnetic waves to flow freely in one direction only, a phenomenon that could lead to photonic devices, such as optical waveguides, with zero scattering loss.
Masters of Light Garner Nobel
STOCKHOLM, Sweden, Oct. 6, 2009 -- Three “masters of light” considered the fathers of fiber optics and digital imaging were honored Tuesday with the 2009 Nobel Prize in Physics by the Royal Swedish Academy of Sciences. Charles K. Kao received half of the $1.4 million prize for his...
Femtolasers Aid Space Mission
MIDDLESEX, England, Oct. 5, 2009 – The National Physical Laboratory (NPL) has helped to establish that femtosecond comb lasers can provide accurate measurement of absolute distance in formation flying space missions. The benefit of such missions is they can gather data in a...
Graphite Proves Ferromagnetic
EINDHOVEN, Netherlands, Oct. 5, 2009 – In what could be promising results for new applications in nanotechnology, such as biosensors and detectors, researchers at Eindhoven University of Technology showed for the first time why ordinary graphite is ferromagnetic, or a permanent magnet at...
NIST Using Optronic Light Source
Oct 5, 2009 — Optronic Laboratories, located in Orlando, Fla., has delivered a specially designed version of its popular OL 490 agile light source to the National Institute of Standards and Technology (NIST) in Gaithersburg, Md. NIST commissioned the custom OL...
For lasers, small and thin are in
NORFOLK, Va. – Lasers just keep getting smaller and smaller: Recently, only a couple of months after the report of the world’s thinnest laser, the world’s smallest laser was announced. Both developments barely precede the 50th anniversary of the laser, which will...
Guiding light is not just a soap opera
BOSTON – Computers of the future may use light rather than electricity for logic functions. “There is this dream of the all-photonic circuit to guide light and perform functions,” commented Willie Padilla, a professor at Boston College. Such light-based...
Lasers light a better way to build a sub
ARLINGTON, Va. – By using laser projection instead of paper and string, an estimated half a million dollars could be saved on every Virginia-class submarine hull built by the General Dynamics Electric Boat Div. in Quonset Point, R.I. That adds up to tens of millions...
Satellite proves its worth
GREENBELT, Md. – The Geostationary Operational Environmental Satellite (GOES) system has been expanded by a new satellite, GOES-14. Designed and run by NASA and the National Oceanic and Atmospheric Administration (NOAA), the goes system provides forecasters with...
Single-photon converter expands IR spectrometry
GAITHERSBURG, Md. – A cleverly designed single-photon detector has enabled scientists at the National Institute of Standards and Technology (NIST) to develop a highly sensitive and low-cost spectrometer that operates in the infrared. The technique could be used in...
Small device prevents diode death
ORLANDO, Fla. – Electrostatic discharge (ESD), reverse bias and power surges are common causes for the malfunction or premature failure of laser diodes, LEDs and photodiodes. As a solution, William Benner, president of Pangolin Laser Systems, has devised a...
Stellar Jet Recreated in Lab
ROCHESTER, NY, Oct. 1, 2009 – Astronomers will tell you that the vast amounts of matter that certain stars stream into space create some of the most beautiful structures observed by telescopes, but they have a hard time explaining it. Adam Frank, professor of physics and...
Tunable light source reaches nanoscale milestone
SOUTHAMPTON, UK – In the race to develop ever-smaller and -faster optical devices, researchers have built the first tunable nanoscale light source driven by free electrons. Dubbed the “light-well” by its creators, the novel emitter could one day be used as an on-chip...
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