July/August 2013

The Future of 3-D Printing

Tim Hayes

Three-dimensional printing technology has created a lot of buzz lately among politicians, engineers and hobbyists alike. But how realistic are the claims being made on its behalf?

Underwater Imaging Gets Clearer

Underwater imaging in natural bodies of water is notoriously difficult due to the large range of particulates that can impede light propagation. However, recent developments in optical technology that build on polarization-based encryption and lidar are leading to incremental advances.

Nonlinear Optics in Crystalline Whispering Gallery Resonators

Whispering gallery resonators made from crystalline materials are compact, stable and highly tunable. These versatile devices can produce light in the classical and quantum domains, showing promise for applications in spectroscopy, metrology and quantum information schemes.


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