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Marie Freebody News
Preserving Moore’s Law Pushes Lithography to its Limits
May 1, 2011 — The race is on to develop the next technology that will enable manufacturers to continue scaling down their chip sizes. Will optics provide the answer everyone is looking for? The brisk march of optical lithography has set the pace for the shrinking size of semiconductor devices and integrated circuits (ICs) that we see today. Optical lithography – the technology of patterning – enables intricate circuits to be created in wafers at dimensions smaller than the light wavelengt...
Smooth flakes of gold build better plasmonic devices
WÜRZBURG, Germany – Size is everything when it comes to fabricating plasmonic structures. For optical nanoantennas, for example, we’re talking about tens of nanometers in length, with a gap of less than 10 nm. At this scale, even slight defects can become a...
Superconductors Strengthen Single-Photon Detectors
Mar 1, 2011 — Single-photon detectors (SPDs) underpin a host of new areas in optical physics, one of which is quantum cryptography – or, more correctly, quantum key distribution (QKD) – an application that is already on the fringes of commercial...
CZTSSe solar cell shows realistic potential for commercialization
Feb 1, 2011 — Scientists at Purdue University in West Lafayette, Ind., have developed a thin-film solar cell from Earth-abundant materials. They say that their CZTSSe solar cell, which is made from CZTS nanocrystals, could provide a cost-friendly alternative to...
The Slow-Light Race Is On
Feb 1, 2011 — Since the notion of slow light first became a reality more than a decade ago, scientists have been exploring its use in fundamental studies of light-atom systems as well as for long-term applications in all-optical data processing, quantum...
Thin-film laser takes a practical approach to silicon photonics
DURHAM, N.C. – Scientists have successfully built a thin-film laser onto silicon that demonstrates the lowest threshold current densities to date for lasers on silicon integrated with waveguides. The Duke University researchers say that their tiny laser is cheap...
Edible optical tags make a stand against counterfeit drugs
HONOLULU – The global pharmaceutical market is worth $800 billion annually, and approximately 10 percent of this is thought to be counterfeit. Most drug manufacturers employ printed codes or serial numbers, bar codes or hologram stickers on packaging to...
Plasmonic antenna enhances spectroscopic studies
HOUSTON – The need for technologies that can detect molecules with high sensitivity is important in many fields. For applications ranging from industrial safety to homeland security, single-molecule sensitivity would be a highly valuable tool. Now an optical...
Quantum networks receive memory boost
ATLANTA – Long-distance quantum communication could be a step closer, thanks to a suite of optical technologies developed by researchers at Georgia Institute of Technology. The group has demonstrated a low-noise system for converting photons carrying quantum...
New color filter could spell “grate” success for future displays
ANN ARBOR, Mich. – Scientists are seeking to commercialize a new type of color filter that they claim could be a step toward more efficient, smaller and higher definition display screens. The filter can be integrated into current LCD technologies to increase...
Tiny laser: Big challenge
CAMBRIDGE, Mass. – Since the invention of lasers 50 years ago, some scientists have worked to make the new versions bigger and more powerful, while others have been in pursuit of smaller and more efficient models. Now, a group of scientists at Harvard University and...
Temperature Sensors: Monitoring the Health of the Production Line
Oct 8, 2010 — For manufacturers, temperature can be a critical indicator of the status of a piece of equipment, a process or the product itself. Infrared sensors can be used as a useful yardstick to gauge the health of a production line, helping to maximize...
Terahertz detection at a distance
TROY, N.Y. – When it comes to safe screening and detection, terahertz imaging offers considerable advantages but one major drawback. Terahertz waves occupy a large segment of the electromagnetic spectrum between the infrared and microwave bands and can provide...
“Smartdust” shines new light on SERS
XIAMEN, China – Layering dust onto a surface you wish to study may seem counterintuitive, but scientists in China and the US claim that their “smartdust” will enable Raman spectroscopy to be used on any surface. Surface-enhanced Raman scattering...
Curved light bends the rules
TEL AVIV, Israel – Conventional thinking leads us to believe that light only follows a straight path and that it diffracts as it travels. But some scientists are breaking all the rules by creating a new class of nondiffracting optical beam that can bend around...
Quantum teleportation takes a giant leap
BEIJING – Scientists in China have successfully teleported particles farther than ever before, achieving quantum teleportation in free space over a distance of 16 km. Previous experiments had seen quantum teleportation via an optical fiber limited to just 600...
Consumers Dominate MEMS Market
Aug 1, 2010 — The microelectromechanical systems (MEMS) market is expected to surpass a staggering $11 billion by 2012, according to Yole Développement, a French market research and strategy consulting company specializing in the MEMS, compound...
Lidar Reveals Hidden Aftershock Hazard in Haiti
Aug 1, 2010 — Rescue agencies the world over have rallied together in a bid to bring relief to the thousands of people left injured, homeless and without food or sanitation in the wake of the Haiti earthquake, which devastated the region in January this year. ...
Swiss Research Institutions Rated Among Best in World
Aug 1, 2010 — Some of its best-known exports may include watches, chocolate and cheese, but Switzerland also is home to a healthy photonics industry, which, according to an October 2009 report by Swiss-based consulting firm Optech Consulting, has generated a...
Quantum dot-based image sensors: A picture of the future?
MENLO PARK, Calif. – After operating in complete secrecy for the past three years, InVisage Technologies Inc. has revealed the reason behind its clandestine behavior: the development of a new type of image sensor material that promises to deliver four times better image...
Quantum sensor sets new limits
BATON ROUGE, La. – Researchers at Louisiana State University (LSU) are taking advantage of the quantum properties of light to design the world’s most sensitive optical interferometer. Optical interferometers are used in a vast range of applications, including...
Could it be lights out for the traditional bulb?
REGENSBURG, Germany – After 120 years of faithful service, the incandescent bulb is bowing out in favor of more energy-efficient lighting. All over the world, governments are introducing new rules to phase out the traditional lightbulb. In September 2009, the European...
Solar energy receives a boost from UK government
SOUTHAMPTON, UK – The feed-in tariffs for renewable energy recently introduced by the government heightened interest at the sixth Photovoltaic Science Application and Technology Conference (PVSAT-6), hosted by the University of Southampton’s School of...
Could It Be Lights Out for the Traditional Bulb?
May 28, 2010 — After 120 years of faithful service, the incandescent bulb is bowing out in favor of more energy-efficient lighting. All over the world, governments are introducing new rules to phase out the traditional lightbulb. In September 2009, the European...
Light moves in not-so-mysterious ways
ERLANGEN, Germany – How can we search the Internet more quickly? How will future quantum computer networks operate? What is happening during the fast energy transfer in photosynthesis? These and many other questions related to the dynamics of complex systems are now...
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May 2024
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