Laboratory for Ultrafast & Nanoscale Plasmonics (UFNP) aims to observe ultrafast physics based on plasmonics. We fabricate the metal nanostructures such as metamaterials using nanotechnology and we can observe amplified physical phenomena or nonlinear phenomena that can occur under strong electric fields. By using the ultrafast spectroscopy method, these physics can be measured in real-time by interacting with light or how the state of a substance changes over a period of time from picoseconds to femtoseconds. Through the production and measurement of these samples, we are conducting research that can be applied to various fields such as super-sensitive sensors and detection of extremely trace substances, as well as understanding fundamental physics.