Let there be light—aerogel-filled glass bricks provide translucency as well as insulation and load-bearing capabilities

Glass block walls can be a desirable way to maximize natural light exposure in a building, but their thermal properties do not allow for the best energy efficiency. Researchers at Empa, the Swiss Federal Laboratories for Materials Science and Technology designed aerogel-filled glass bricks that are translucent as well as thermally insulating and strong.

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De-‘SCRIBE’-ing improvements—researchers refine procedure for printing gradient refractive index optics

Significant progress in creating optics with nonuniform (gradient) refractive indices has been made over the past two decades. In 2020, researchers at the University of Illinois Urbana-Champaign proposed a unique way to use direct laser writing to achieve even greater control over the refractive index. A new open-access paper details refinements to their so-called SCRIBE method.

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