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Light’s polarization states measured directly
ROCHESTER, N.Y., and OTTAWA, Ontario, Canada – There may be a way around Heisenberg’s famous Uncertainty Principle, a law of the quantum world that says precise measurement is impossible. The solution could be a method developed at the universities of Rochester and Ottawa that directly measures the polarization states of light for the first time. The direct measurement technique, developed in 2011 by scientists at Canada’s National Research Council, determines the wave function – a way of determining the state of a quantum...
OCT Improves Lens Development
ROCHESTER, N.Y., May 1, 2013 — Using OCT during the manufacture of a new type of optical lenses could improve their development by providing researchers with a better picture of the complete structure that makes up the material.
Sandia houses world’s largest fiber optic network
ALBUQUERQUE, N.M. – The largest fiber optic local area network (LAN) in the world, pioneered by Sandia National Laboratories, is expected to reduce energy costs by 65 percent when fully operational. The network pulls together 265 buildings and 13,000 computer network...
Spectroscopy method could lead to better optical devices
PROVIDENCE, R.I. ­– A new spectroscopy method takes advantage of a fundamental property of thin films – interference – and could help optical devices like LEDs and solar cells make better use of these materials. The technique, called energy-momentum...
Vacuum-based electron acceleration may be useful for laser plasma fusion
UPTON, N.Y. – A proof-of-principle test has demonstrated that an electron beam can be accelerated by a laser in free space, a feat never before accomplished at such high energies. The breakthrough may have implications for laser plasma fusion as a new energy...
Virtual photons become real in a vacuum
ESPOO, Finland – By changing the position of a mirror inside a vacuum, virtual particles can be transformed into real photons that can be experimentally observed. In a vacuum, there is energy and noise, the existence of which follows the uncertainty principle in...
LED Streetlight Design Curbs Light Pollution
ZHONGLI CITY, Taiwan, and ZACATECAS, Mexico, April 30, 2013 — Some of the shortcomings of a traditional streetlight — light pollution, glare, wasted energy, and uneven illumination — could be eliminated under a new LED-based system that shines only where needed.
London Roadshow Highlights Photonics
LONDON, April 30, 2013 — Tomography, superresolution microscopy, and light-based diagnostics and treatment dominated the topics of discussion April 9 at the 2013 Photonex London Roadshow, held at University College London.
Ovarian Cancer Detected Using Neighboring Cells
EVANSTON, Ill., April 30, 2013 — A minimally invasive technique that examines cells swabbed from the cervix or uterus has the potential to detect the early presence of ovarian cancer.
‘Meta-Atoms’ Could Advance Optical Devices
ROLLA, Mo., April 29, 2013 — Specially designed “meta-atoms” capable of stretching lightwaves and accelerating them to a speed faster than light could advance optical devices, a US group has theorized.
Industrial Fiber Laser Sales Boost Coherent’s Q2
SANTA CLARA, Calif., April 26, 2013 — Record bookings for materials processing — including the first large order for its 1-kW industrial fiber laser — helped Coherent Inc. report a profit of $15 million (61 cents a share) for the second fiscal quarter of 2013, the laser maker reported...
Lasers Bring New Urgency to Electric Power Research
ARLINGTON, Va., April 26, 2013 — The upcoming deployment of a shipboard laser weapon has brought to the forefront the need for reliable, high-voltage power management systems for national security, officials said this week at the Office of Naval Research (ONR)-sponsored Electric...
Zinc Oxide Lasers and LEDs on Horizon
RALEIGH, N.C., April 26, 2013 — By adding three elements to zinc oxide, researchers have solved a longstanding materials science puzzle: whether it is possible to create semiconductor devices from the compound. Finding the answer could lead to zinc-oxide-based ferromagnetic and...
Light Bursts from a Flying Mirror
GARCHING, Germany, April 25, 2013 — A dense sheet of electrons accelerated to close to the speed of light can act as a tunable mirror that generates bursts of laserlike radiation in the extreme ultraviolet range via reflection. The findings could pave the way for new methods of...
New Photocatalyst Enhances VIS Light Absorption
URBANA, Ill., April 25, 2013 — A high-performance solar photocatalyst based on TiO2 and other “metallic” oxides has been shown to greatly enhance visible light absorption, enabling more efficient use of the solar spectrum for energy applications.
Cancer Cell Killers Revealed by Laser Microscopy
MANCHESTER, England, April 24, 2013 — A laser-based microscope video imaging technique has revealed why a particular cancer drug is so effective at killing cells. The findings could revolutionize the design of future cancer treatments.
Intricate Experiment Reveals Cause of LED Droop
SANTA BARBARA, Calif., April 24, 2013 — The future looks bright for alternative lighting now that scientists have solved the mystery that causes LEDs to “droop” in efficiency at high currents.
Waveguides Contain Spinning Photons
LONDON, April 24, 2013 — Electromagnetic waves in waveguides can now be guided in one direction by forcing photons to interact with circulating plasmon polaritons in the near field, or very close to the surface of a small metal nanostructure, an international study has...
‘Beautiful Idea’ Eliminates Middleman in Quantum Communication
COLLEGE STATION, Texas, April 23, 2013 — Information can now be exchanged between two parties without any physical particles traveling between them, essentially eliminating the middleman in quantum communication, a new study has found.
Germanium Made Laser-Compatible
ZURICH, April 23, 2013 — A manufacturing technique that alters the optical properties of germanium — an element incompatible with lasers — has rendered the semiconductor laser-compatible through high tensile strain. The discovery could enable microprocessor components to...
Plasmon Waves Control Light
CAMBRIDGE, Mass., April 23, 2013 — A nanoscale device that converts optical signals into surface plasmon polaritons can distinguish between different movements of polarized light and precisely manipulate the signals in one direction or another without damaging them.
System Aims to Concentrate Power of 2000 Suns
ZURICH, April 22, 2013 — A photovoltaic system capable of harnessing the power of 2000 suns and converting 80 percent of incoming light into useful energy could provide sunny, remote locations with electricity, fresh water and cooler air at lower prices than conventional...
Thermal Imaging Helps Nab Bombing Suspect
WATERTOWN, Mass., April 22, 2013 — The photonic technology of thermal imaging was literally in the spotlight on the evening of April 19 as law enforcement officials used it to monitor and capture suspected Boston Marathon bomber Dzhokhar Tsarnaev. On April 15, two bombs exploded in...
Space Telescope Finds 3 Super Earths
WASHINGTON, April 19, 2013 — Three super-Earth-size planets in two newly discovered planetary systems are in a “habitable zone” — a distance from their star suitable for supporting liquid water — and potentially could support life as we know it, according to NASA’s Kepler...
Fraunhofer Centre for Applied Photonics Officially Opens
GLASGOW, Scotland, April 18, 2013 — The UK headquarters for Europe’s largest contract research organization has officially opened its doors at the University of Strathclyde.

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