Welcome to the website of NanoPlasmonics Lab (NPL). We are a group of researchers affiliated with the Department of Photonics Engineering at the Technical University of Denmark and dedicated to studying the exciting field of plasmonics, and in particular, nanoplasmonics. The purpose of this website is to host our free extension to the RF Module of COMSOL 4.2a, which incorporates nonlocal effects of the electron gas in metals using a hydrodynamic formalism.