Microfabricated Hollow Structure (IMAGE) Optica Caption Using an inexpensive laser and an ultrathin optical fiber, the researchers created hollow microstructures such as the one shown here. They were able to create microstructures with a 1.0-micron lateral (side-to-side) and 21.5-micron axial (depth) printing resolution. Credit Paul Delrot, École Polytechnique Fédérale de Lausanne Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.