Cover Story

Interplanetary Laser Communications

Hamid Hemmati

Lasers could enable deep-space communication between Earth and planets at the farthest reaches of our solar system. Over the next two decades, optical communications technology is expected to deliver at least an order-of-magnitude higher... more>>

Features

Using Optics to Detect Skin Cancer

Patricia Daukantas

New techniques in confocal microscopy could make it easier for dermatologists to distinguish between a benign skin spot and one that can kill. more>>


Scalable Quantum Computing with Linear Optics and Quantum Memories

Zhen-Sheng Yuan, Yu-Ao Chen, Shuai Chen and Jian-Wei Pan

Quantum computing is a powerful application of the laws of quantum physics. It may one day be far more efficient than conventional computation methods at factoring large integers, performing database searches and making quantum physics simulations. more>>


Toward Applications of Slow Light Technology

Enrique Parra and John R. Lowell

Scientists working for the Defense Advanced Research Projects Agency (DARPA) are making progress toward the development of robust, integrated devices that can slow, store and process light pulses. Their research will have a far-reaching impact on high-speed optical processing, telecommunications networks and quantum information science. more>>


Scatterings

Magnets Control Photonic Crystals

Yvonne Carts-Powell

Researchers at the University of California, Riverside, not only discovered a way to make photonic crystal structures that self-assemble; they also developed a simple method for actively altering the period of the crystals. more>>


Ultrafast Silicon Lasers Aim at Communications Tasks

Yvonne Carts-Powell

Researchers have demonstrated 1,310-nm lasers on a silicon substrate that operate in continuous-wave mode up to high temperatures and 1,550-nm lasers that operate modelocked to produce the ultrashort pulses at high repetition rates that are desirable for communications. more>>


Did You Know?

Yvonne Carts-Powell

Using light to freeze supercooled water. more>>

Pulses

Education

Hands-on Workshop for Computer-Generated Holography

Tom Milster

A three-day workshop offered at the University of Arizona’s College of Optical Sciencesteaches participants how to design and make computer-generated holograms and diffractive optical elements using direct-writing maskless technology. more>>


Optical Engineering

Out-of-the-Box Metrology

Matthew E. Hansen

The role of creativity is sometimes undervalued in the sciences. But when it comes to problem-solving in metrology, the ability to think beyond normal boundaries is of paramount importance. Countless patents and measurement processes have sprung from late-night inspirations or other flashes of insight. more>>


Optics Innovations

Lambda Research Corp.: Establishing a Technology Bridge

Edward R. Freniere

On the 15th anniversary of Lambda Research Corporation—a privately held optics software company in Massachusetts—its president and CEO reflects on its founding, its funding and its flourishing business. more>>


Policy Matters

Explaining Science in the Courtroom

Tom Price

Explaining science in the courtroom. more>>


The History of OSA

Milestone JOSA articles from 1917-1973

John N. Howard

When David MacAdam, the editor of JOSA from 1964 to 1975, was asked his opinion about signifi cant OSA events in 1973, he thought fi rst about all the interesting and important papers that had appeared in JOSA over the years. His list of JOSA milestones takes on special signifi cance this year, which marks the 90th anniversary of the journal. more>>


Conversations in Optics

OPN Talks with Herwig Kogelnik

Angela Stark

OPN talks with Herwig Kogelnik, lightwave communications pioneer and OFC/NFOEC keynote speaker. more>>

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