Phys.Org (Nov. 28) -- A multi-institutional research collaboration, led by MatSE professor Paul Braun, has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon, with broad impacts in integrated optoelectronics, imaging, and photovoltaics. Also: ScienceBlog (Nov. 28), U.S. Dept. of Energy (Nov. 29).