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(38,334 articles)
Popular News
Connected and Smarter, Cameras Keep Watch
Apr 1, 2012 — Digital network cameras are increasingly coming into play for surveillance and security applications. Fading fast are the days of closed-circuit television, yesterday’s video surveillance staple that displays the output of analog cameras on monitors. It can be an inexpensive solution. However, the image can be grainy, the hours spent recording video a hassle, and the multicamera installation management difficult and costly. Today, the trend is toward network cameras, which are...
Conscripting Terahertz Sensors
Apr 1, 2012 — Imaging and spectroscopy in the terahertz frequency range eventually will give troops a welcome advantage in the field. Terahertz waves are short enough to provide resolution of less than 1 mm, yet long enough to penetrate most nonmetallic...
Multiband Optical Filters Find Applications Outside Fluorescence
Apr 1, 2012 — Whether used for imaging cells or astronomical bodies, multiband filters can improve signal-to-noise ratio while reducing cost, size, and setup and data-acquisition times in optical systems and instruments. In the past, most optical filters had a...
The Night Glows Brighter in the Near-IR
Apr 1, 2012 — The night sky is never absolutely dark, even after removing the influence of starlight and diffused sunlight from the other side of the globe. Spectral irradiance, caused by airglow, is several times stronger in the 900- to 1700-nm band than in the...
How to Evaluate a Measurement Application’s Requirements
Apr 1, 2012 — Precision noncontact metrology application factors can seem complicated, especially when 3-D or multispectral measurements are involved. Here’s how to ensure a robust and otherwise optimized metrology solution for your application. The...
Defense, Security Show Targets Baltimore
Apr 1, 2012 — SPIE moves its DSS conference and trade show to the Charm City to maximize exposure to governmental agencies, military institutions and research organizations. At the mention of Baltimore, certain things come to mind: crab cakes, the Orioles, Camden...
The physics behind the fizz
Apr 1, 2012 — Gorgeous floral arrangements can really brighten up a party – particularly when they’re blooming in champagne flutes. In a process invisible to the naked eye, champagne bubbles take on a flowerlike structure around bubbles...
Mobius Photonics Receives Patent
Mar 31, 2012 — Mobius Photonics Inc. has been granted US Patent No. 8,009,705 for an optical fiber-based master oscillator power amplifier system that avoids stimulated Brillouin scattering, a spontaneous phenomenon of light scattering that occurs in optical...
Quantum Plasmon Resonance Illuminated
STANFORD, Calif., March 29, 2012 — Plasmon resonance at the nanoscale, the phenomenon responsible for the vibrant hues of stained-glass windows, can kill cancer cells and has the potential to drive forward quantum optics and bioimaging, new research suggests. Plasmon resonance is...
Many-Body System Beats Computer in Simulating Quantum Dynamics
MUNICH, Germany, March 29, 2012 — A recent experiment has shown that a many-body system of ultracold atoms can be used as a quantum simulator for experiments where classical computers fail. This also allows physicists to have a better understanding of how particles tunnel, and it...
No One Likes the Medical Device Tax
Mar 30, 2012 — With the US Supreme Court hearing arguments this week over the constitutionality of the health care mandate in the Patient Protection and Affordable Care Act — otherwise known, of course, as Obamacare — another provision of the law is...
Diatom Biosensor Could Detect Chemicals in Water
SEQUIM, Wash., March 30, 2012 — A biosensor made of fluorescent proteins that are embedded in the shell of microscopic marine algae called diatoms could help detect chemicals in water samples. The device could help produce nanomaterials that can solve sensing, catalysis and...
Photonics Partnership to Combat EU Economic Crisis
BRUSSELS, March 30, 2012 — At the Photonics21 annual meeting on March 28, European Commission Vice President Neelie Kroes announced her support in creating a photonics public-private partnership (PPP) to combat the economic crisis in Europe, and to secure Europe's leading...
Novel Plasmonic Material Discovered
WEST LAFAYETTE, Ind., March 30, 2012 — Titanium nitride, the first nonmetal to be added to the short list of surface-plasmon-supporting materials, could bridge the gap between optics and electronics. The advance could point the way to a new class of optoelectronic devices with...
Seeking to Unify Physics with Mirrors
VIENNA, March 29, 2012 — An experiment designed to observe quantum interactions at the Planck scale could, if successful, help bridge the gap between quantum mechanics and general relativity. It would also remove the need to rely on high-energy experiments or distant cosmic...
Nanostars Seen as Superior for SERS
HOUSTON, March 29, 2012 — Synthesized starfruit-shaped gold nanorods could strengthen applications that rely on surface-enhanced Raman spectroscopy.
Cell Repair Seen in Real Time
KARLSRUHE, Germany, March 29, 2012 — Cell membrane repair in a living organism was observed for the first time in real time using a high-resolution fluorescence imaging technique. The findings may contribute to the development of therapies for human myopathies and pave the way for new...
Quantum Dot Solar Cell Efficiency Boosted
BUFFALO, N.Y., March 29, 2012 — A collaboration between the US Army Research Laboratory (ARL) and State University of New York (SUNY) at Buffalo has led to the potential to boost the efficiency of quantum dot solar cells by a factor of two. The discovery could lead to lighter...
Laser Mixing Generates Multifrequency Light
SANTA BARBARA, Calif., March 29, 2012 — A groundbreaking laser mixing technique can manipulate electron-hole collisions to create many frequencies of light simultaneously. This mechanism for ultrafast light modulation has potential applications in high-speed optical communications.
Laser Attacks on Aircraft in South Africa on the Rise
GAUTENG, South Africa, March 28, 2012 — Nearly 200 incidents of lasers being shone at aircraft have been reported in South Africa over the past two years, the Air Traffic and Navigation Services Co. Ltd. reported. The laser attacks are a hazard to aircraft safety.
German Society Awards Top Physics Medal to Blatt
INNSBRUCK, Austria, March 28, 2012 — Rainer Blatt has received the Stern-Gerlach Medal from the German Physical Society for his work in the fields of metrology and quantum information processing with electromagnetically stored ions. He is the first Austrian scientist to receive this...
A*STAR Institute, Picosun Team to Develop ALD
ESPOO, Finland, and SINGAPORE, March 28, 2012 — The two organizations have partnered to develop advanced atomic layer deposition techniques to enable continued growth in next-generation memories and solar cells.
PV Goes 3-D
CAMBRIDGE, Mass., March 28, 2012 — A new 3-D configuration for photovoltaic cells can generate 20 times more power than standard fixed flat panels with the same base area.
Swarm of Satellite-Operated Lasers for Asteroid Deflection
GLASGOW, Scotland, March 28, 2012 — A swarm of small satellite-operated lasers could deflect asteroids headed for a catastrophic collision with Earth, a discovery that could radically change asteroid deflection technology.
Emcore Selling VCSEL Assets for $17M
ALBUQUERQUE, N.M., and SAN JOSE, Calif., March 28, 2012 — Emcore Corp., a provider of compound semiconductor-based components and subsystems for the fiber optics and solar power markets, announced Wednesday that it will sell its vertical-cavity surface-emitting lasers (VCSEL) and VCSEL-enabled transceiver...
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