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Research & Technology News
NASA Sets Laser Communications Record
LAS CRUCES, N.M., Oct. 25, 2013 — NASA’s Lunar Laser Communication Demonstration (LLCD) transmitted data more than 239,000 miles between the moon and Earth using a pulsed laser beam. The download rate of 622 megabits per second is a record, the space agency said this week. LLCD, NASA’s first system for two-way communication using a laser instead of radio waves, also demonstrated an error-free data upload rate of 20 Mb/s transmitted from the primary ground station in New Mexico to the spacecraft currently...
Replacing Mammography with Light and Ultrasound
ENSCHEDE, Netherlands, Oct. 24, 2013 — A new device called a photoacoustic mammoscope combines infrared light and ultrasound to create 3-D maps of the breast. Its creators hope that it could someday replace the x-rays used in traditional mammography for routine breast cancer screenings....
Universal Display Named Top N.J. Tech Firm
EWING, N.J., Oct. 24, 2013 — OLED technology developer Universal Display Corp. has been named Master Technology Company of the Year by the New Jersey Technology Council (NJTC), the company announced Wednesday. The 2013 NJTC Awards honor the state’s top technology...
Light-Activated Implants Signal Specific Deep Tissue
CAMBRIDGE, Mass., Oct. 23, 2013 — A number of novel therapies under development rely on inducing specific cells to do specific things, but getting the right message to the right group of cells — and at the right time — remains a major challenge. And the use of light to...
Coating Provides ‘IR Camouflage’
CAMBRIDGE, Mass., Oct. 22, 2013 — Military camouflage has taken a step forward with the discovery of a coating that, when heated past a certain temperature, looks colder to thermal cameras. A team of applied physicists at Harvard School of Engineering and Applied Sciences (SEAS)...
Mixing Nanoparticles to Make Multifunctional Materials
UPTON, N.Y., Oct. 21, 2013 — A general approach for combining different types of nanoparticles opens opportunities for mixing and matching such particles with different optical, magnetic or chemical properties to form new, multifunctional materials. The technique, developed at...
Quantum Optics Research Garners APS Award
WASHINGTON, Oct. 18, 2013 — A recent physics graduate from the Rochester Institute of Technology has received an award from the American Physical Society (APS) for his quantum optics research. Hao Shi, a native of China, is a 2013 graduate of RIT’s physics program and is...
Raman Scattering Sped Up for Microscopy
GARCHING, Germany, Oct. 18, 2013 — Improvements to Raman spectroscopy using laser frequency combs allow multiple signals from different parts of a molecule — or even different molecules — to be monitored simultaneously using a single detector. The advance is seen as a...
207-nm UV Light May Reduce Surgical Infections
NEW YORK, Oct. 17, 2013 — A narrow spectrum of ultraviolet light can destroy drug-resistant bacteria but is safe for human exposure, a new study says, and may be a way to reduce the serious and stubborn problem of surgical wound infections. It’s been known for years...
Material Gives Visible Light an Infinite Wavelength
AMSTERDAM & PHILADELPHIA, Oct. 16, 2013 — A new metamaterial made from stacks of silver and silicon nitride nanolayers gives visible light a nearly infinite wavelength, an international team reports. The material could be used to make novel optical components or more efficient LEDs....
Room-Temp. Nanodiamond Acts as Optical Switch
BARCELONA, Spain, Oct. 16, 2013 — A single nanodiamond operating at room temperature can be used as an ultrafast optical switch, a key component for future light-based information processing and computing. Faster and more powerful transistors and integrated circuits that are based...
UCF Partnership Focuses on Biophotonics
ORLANDO, Fla., Oct. 15, 2013 — A research partnership between UCF’s College of Medicine and CREOL, the College of Optics and Photonics, is helping scientists use light to learn how cells move during normal development and in disease. The joint UCF project is called RIBOP...
Water Stream Detects Pollution Better
NAPLES, Italy, Oct. 15, 2013 — A microfluidic sensor with a novel design uses unconfined streams of water as a simple, cheap way to test for dangerous chemicals and bacteria in liquid. The pollutant detector, developed in Italy within the framework of the research project...
Novel Lasers Garner NSF Grant
ARLINGTON, Texas, Oct. 14, 2013 — Work to increase the speed and capacity of silicon chips using novel lasers has received an additional $353,000 grant from the National Science Foundation. University of Texas Arlington electrical engineering professor Weidong Zhou said the work...
‘Photons On Demand’ Enable Compact Optical Chips
SYDNEY, Oct. 11, 2013 — Multiple imperfect photon sources can be combined on a single silicon chip to produce a much higher-quality source, say researchers in Australia. Such “photons on demand” will help create extremely compact optical chips. Researchers at...
Spinning-disk Microscope Peers into the Heart of a Cell
LONDON, Oct. 10, 2013 — A new microscopy technique with unprecedented focusing ability will allow structures deep within cells, including viruses and bacteria, to be investigated for the first time.
Ultrafast Spectroscopy Reveals New Uses for Flawed Gems
TUCSON, Ariz., Oct. 9, 2013 — Ultrafast laser pulses have provided the first detailed observation of how energy travels through flawed diamonds. These flaws, known as nitrogen-vacancy centers, have interesting optical and electronic properties that are seen as promising for a...
‘God Particle’ Theorists Share Physics Nobel
STOCKHOLM, Oct. 8, 2013 — Peter Higgs and François Englert will share the 2013 Nobel Prize in Physics for their independent theoretical discoveries nearly 50 years ago of the Higgs boson, the so-called “God particle” that gives all other particles their...
Fiber Optic Links May Show Height Differences Between Optical Clocks
GARCHING and BRAUNSCHWEIG, Germany, Oct. 7, 2013 — A new approach uses optical atomic clocks to precisely measure height differences between locations thousands of kilometers apart, a development that could have implications for quantum mechanics, geodesy and radio astronomy. Researchers from the...
Laser-Based Lighting Produces Cool White Light
WASHINGTON, Oct. 7, 2013 — A new laser-based lighting method produces highly efficient cool white light, offering an alternative to LEDs, which can be prone to droop and heating issues. Investigators at the University of California, Santa Barbara, led by material scientists...
Seeing Cells Through Silicon
ARLINGTON, Texas, & CAMBRIDGE, Mass., Oct. 4, 2013 — A new type of near-infrared microscopy can image cells through a silicon wafer, providing more information about diseased or infected cells flowing through microfluidic devices. “This has the potential to merge research in cellular...
Better Optical Modulators Boost Silicon Photonics
BOULDER, Colo., & CAMBRIDGE, Mass., Oct. 3, 2013 — Improvements to two optical modulators are seen as a major step toward a major goal in silicon photonics: enabling microprocessors to use light instead of electrical signals to communicate with transistors on a chip. The pair of optical modulators...
Tabletop OPA Generates 10 TW
WARSAW, Poland, Oct. 3, 2013 — A new optical parametric amplifier that’s extremely efficient and small enough to fit on a desktop generates light pulses of more than 10 terawatts, physicists in Poland report. The compact optical amplifier, constructed by a team from the...
Tiny Camera Takes a Wide View
SAN DIEGO, Oct. 2, 2013 — A new imager achieves the optical performance of a traditional wide-angle or fish-eye lens — and in high resolution — but in a device less than one-tenth the volume. Such a system could enable high-resolution imaging in unmanned aerial...
‘Embedded eigenvalue’ holds promise for sensors, lasers, more
CAMBRIDGE, Mass. – There are several ways to confine light, but a new approach uses two waves of the same length, but exactly opposite phases, to cancel each other out, allowing light of other wavelengths to pass freely. In mathematical terms, the new phenomenon...
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