Cover Story

Silicon photonics has shown great promise in overcoming communications bottlenecks and providing low-cost components for the Internet—but can it help “green” the industry as well? Harvesting the optical energy lost to two-photon... more>>


Photonic Crystal LEDs

LEDs that have photonic crystals etched on them can direct the emission of light at preferred angles and enhance brightness without consuming more power. These devices have the potential to revolutionize the lighting industry—and spur widespread adoption of environmentally friendly lighting solutions. more>>

Lidar in Space: From Apollo to the 21st Century

Over the last four decades, spaceborne lidar instruments have evolved beyond their original application—altimetry—to tracking glacier melting, gauging wind speeds and spotting snow on Mars. more>>

Lord Rayleigh: A Scientific Life

John William Strutt, also known as Lord Rayleigh, is well recognized as a pioneer in light scattering and other areas of optics. But he was also a master of iterative mathematical techniques for solving complex physical problems. more>>


Using a non-invasive light-scattering approach from materials science, a team from Ohio State University sheds light on presbyopia. more>>

A team at the University of Rochester (N.Y., U.S.A.) has taken the first images of this layer of so-called “dark cells” in a living retina. more>>

Targeting malaria-carrying mosquitoes with laser light. more>>



EDay a Green Day

Last year, secondary school teachers and administrators from throughout the Rochester area learned how to incorporate optics into simple experiments, activities and lesson plans at OSA’s annual Educators’ Day. The 2008 event had a special focus on the role of optics in the environment. more>>

Optics Innovations

Riding Out the Recession

The photonics industry is hanging tough in the recession. In fact, many companies are still experiencing growth, although it may be subdued compared to 2008. Mark Crawford relays tips from the experts on how to survive—and thrive—during tough times. more>>

Policy Matters

Solar Energy: A Global Perspective

Germany, Spain and Japan are leading the world in integrating solar technologies into their energy policies. Now, the United States is starting to make solar a priority as well. Here, Alex Fong reviews solar policies around the globe and highlights successes and challenges. more>>

The History of OSA

Reminiscences: Aden Goes to War

An OSA past president reminisces about his wartime experiences. more>>

Conversations in Optics

Our conversation with Federico Capasso, laser pioneer and CLEO/IQEC speaker. more>>

Our conversation with Alain Aspect, quantum optics pioneer and CLEO/IQEC speaker. more>>