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Glass is one of the most important materials for optical applications but it is difficult to shape on the microscale. In article number 2006341, Frederik Kotz and co‐workers present two‐photon polymerization of nanocomposites, which are subsequently converted to transparent fused silica glass. The cover shows a glass microtower fabricated by this process.
Fused silica glass is the material of choice for many high‐performance components in optics due to its high optical transparency combined with its high thermal, chemical, and mechanical stability. Especially, the generation of fused silica microstructures is of high interest for microoptical and biomedical applications. Direct laser writing (DLW) is a suitable technique for generating such devices,...
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