The Institute for Nanoscience and Nanotechnology of the University of Barcelona (IN2UB) was created in 2006 with the purpose of encouraging research and promoting its outcome within society, in order to contribute to the progress of science and innovation and to spur industrial excellence as well. In this framework, the Institute explores six different research areas which comprehend several specific lines. A part of this research is focused on photonics and optics, with outstanding results. The Institute offers services such as polarimetric characterization and laser direct writing techniques for microfabrication, as well as design, modeling and fabrication of novel photonic structures and devices and comprehensive characterization of photonic performance.