January 2014

Lidar 2.5-D image of Caracol, Brazil, epicenter. Courtesy of Arlen Chase.

Adding a New Dimension: Lidar and Archaeology

Patricia Daukantas

During the past decade, lidar “point clouds” have revealed vast ruins of ancient cities in dense tropical jungles. Some say the laser ranging technique could revolutionize archaeologists’ understanding of human civilizations.


Thin-Film Interference in Lossy, Ultra-Thin Layers

Although much thinner than conventional optical interference coatings, nanometer-thick films made of optically absorbing materials can display strong interference effects. This new class of coatings shows promise for coloring and labeling, optical filters, tunable absorbers and emitters, and energy harvesting.

Probing the Eye More Deeply: Adaptive Optics Multiphoton Microscopy

The integration of adaptive optics techniques into ophthalmic imaging devices has improved the diagnosis and treatment of eye diseases. The coupling of adaptive optics with multiphoton microscopy may help extend the reach of ophthalmic imaging to greater depths within the cornea and retina.


Scatterings

Tower Optical Corporation: Riding the Waveplates

A Fellow’s Journey to Mongolia

Career Culture Shock

Introducing OSA’s New Treasurer

Essential U.S. Government Functions

Ulbricht’s Kugelphotometer


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