Smart windows that self-illuminate on rainy days

Smart windows that automatically change colors depending on the intensity of sunlight are gaining attention as they can reduce energy bills by blocking the sun's visible rays during summer. But what about windows that change ...

Understanding color at a nanoscale

Some of the most vibrantly colored creatures in the animal kingdom don't owe their amazing colors to pigment. Instead, they cover themselves with microscopic structures that fine tune the way they reflect light.

Tuning terahertz transmission

The ability to manipulate light on a subwavelength-scale could lead to a revolution in photonic devices such as antennas, solar panels, and even cloaking devices. Nanotechnology advances have made this possible through the ...

Designing next-generation optical antennas

Antennas catch radio waves, a form of electromagnetic radiation, from the air and convert the energy into electrical signals that feed modern telecommunications. They can also convert electrical signals into radio waves. ...

Army research lights the way for new materials

What happens when gold and silver just don't cut it anymore? You turn to metallic alloys, which are what Army researchers are using to develop new designer materials with a broad range of capabilities for our Soldiers.

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