OPN July/August 2011
Cover Story
Optogenetics: An Illuminating Journey into the Brain

Sally Cole Johnson
Through the fascinating new study of optogenetics, researchers can use light to control brain cells that have been genetically engineered to respond to specific wavelengths. This rapidly evolving field is helping to demystify how neural... more>>
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DNA as an Optical Material
A.J. Steckl, H. Spaeth, H. You, E. Gomez and J. Grote
DNA, the beautifully symmetrical “molecule of life,” carries the core genetic blueprint for every living organism. Now, through the emerging field of DNA photonics, it also has the potential to serve as an inexpensive, renewable resource in the development of optical waveguides, organic LEDs and laser structures. more>>
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Optical Control through Light Transmission
David S. Bradshaw and David L. Andrews
The simple action of passing laser light through an optically transparent system may enable researchers to control a number of mechanical and optoelectronic processes. These novel interactions of light present an array of useful applications in optical switching, optical binding and fluorescence imaging. more>>
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Rare Earth Elements: High Demand, Uncertain Supply

Marcius Extavour
Rare earth elements are garnering global media attention due to their potential role in clean energy technologies. But these elements—which have enabled spectacular innovations in optics over the past decades—are now subject to unprecedented price shocks due to uncertainty around future supply. What does this mean for the optics community? more>>
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The Extreme Light Infrastructure: Optics’ Next Horizon
Gérard Mourou and Toshiki Tajima
The Extreme Light Infrastructure—a project involving nearly 40 research and academic institutions from 13 EU member countries—will allow researchers to probe laser-matter interaction at unprecedented intensity levels. more>>
Career Focus
Managing Up in Academia
Jean-luc Doumont
Life as a graduate student or post-doc is full of challenges, whether they include learning
complex scientific concepts, acquiring new technical skills, or managing your first large
project. For some unlucky individuals, an academic position may also bring the trial of
coping with a poor relationship with their advisor. Here’s what to do if it happens to you. more>>
Light Touch
Visions of Invisibility in Fiction
Greg Gbur
Long before the advent of optical cloaking, authors of science
fiction were imagining how it could work—-and making some
good guesses in the process. more>>
Optical Engineering
Optical 3-D Gesture Recognition
Andre Wong
With applications in gaming, business and beyond, 3-D optical gesture recognition
technology uses light to turn human gestures into computerized data streams. more>>
Policy Matters
A Conversation with Rep. Ralph Hall
Laura Kolton
OPN talks with the U.S. chair of the
House Science, Space and Technology
Committee about R&D funding, America’s
role in space, and how he is collaborating
with the Obama Administration. more>>
The History of OSA
Presidential Profile: Van Zandt Williams
John N. Howard
Van Zandt Williams was OSA’s 1966 President for just five months due to his untimely death—but he had a lasting impact on the Society, particularly in the areas of education and outreach. more>>