Researchers have developed a metasurface device that can display three types of images depending on the illumination light. The three-channel device could be used as an anticounterfeiting measure or offer a new way to securely deliver encrypted information.
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A camera system on the exterior of the International Space Station (ISS) will be snapping images of more than a dozen different material samples for the next six months. The mission is to gather detailed information that will help researchers determine how and why the harsh conditions of space affect these materials. Among the issues to be studied are color changes that may indicate the degradation caused by exposure to the environment in space.
A team of researchers from the National Institute of Standards and Technology (NIST)—including Stephanie Moffitt, Po-Chang Pan, and Xiaohong Gu (pictured)—set out to help solar panel buyers understand how long the technology will last before it breaks down. Nowadays, 30- to 35-year warranties are the norm for commercial solar panels, but there are concerns that some solar panel materials can show cracks and fail earlier. The NIST team employed various microscopy techniques in their study of the panels.
