November 2012 Issue
Feature Articles
Thin-Film Photovoltaics: Making Every Photon Count
Researchers are turning to organic and hybrid nanoscale structures to create more cost-effective solar cells. Thin-film photovoltaic technologies that incorporate silicon are among the best options for effectively managing light.
by Yvonne Carts-PowellFifty Years of Visible LEDs
Originally a byproduct of the race to build a semiconductor laser, the visible light-emitting diode emerged in the fall of 1962. Following the “alloy road,” scientists have devised ever-brighter LEDs—and poised them to displace a century-old lighting technology.
by Patricia DaukantasBird Brains: Using Picosecond Optical Tomography to Assess Neural Activity
Imaging the brains of birds with picosecond optical tomography gives scientists a fascinating look into how these animals respond to calls and songs—and insight into how the technology could be applied to humans.
by Stéphane Mottin and Bruno MontcelDepartments and Columns
Mapping Matter
Using infrared and X-ray lasers to reveal light’s effect on matter.
Dark Energy Telescope Goes Deep
For the next five years, the 570-megapixel Dark Energy Camera, will be used to scan the depths of space for signs of dark energy.
Identifying Cancer by its Blood Supply
Using optical coherence tomography to image blood vessels.
Optics and Photonics at the Southwest Research Institute
A Texas nonprofit launches a multidisciplinary Center for Applied Optics and Photonics.
What is the most important skill you developed in graduate school?
Tracking Zombie Bees with Lasers
An ingenious system tracks individual bees with lasers and tiny radio-frequency identification (RFID) chips.
Scared of the Needle? A Laser Could Help
A laser-powered drug-delivery device targets the skin layer above the nerve endings, so it should not cause the recipient any pain.
Stereoscopic Laser Projection Displays
Three-dimensional cinematic display techniques generally don’t translate well for laser projections. Wavelength multiplexing may optimize depth effects without the space limitations of those methods.
CIOMP: The Cradle of China’s Optics
The Changchun Institute of Optics, Fine Mechanics and Physics celebrates 60 years of achievement.
Galaxies Far, Far Away
Astronomers have created a new portrait that reflects humankind’s deepest-ever view of the universe.
U.S. Science Funding in Jeopardy
The U.S. Office of Management and Budget released a report detailing the potential science funding reductions slated to go into effect 2 January 2013, barring an agreement in Congress on deficit reduction.
Honoring Bright Ideas that Once Seemed Dim
A new award program shows that not all government-financed research is odd or pointless; in some cases, it transforms how we live.