Plasmonic nanoparticles

Plasmonic nanoparticles are tiny particles, often made of metals like gold or silver, that can interact strongly with light. When light hits them, electrons on their surface oscillate collectively in a process called plasmon resonance, leading to unique optical properties. This allows these nanoparticles to concentrate light into very small regions, enhancing signals for applications such as sensing, imaging, and photothermal therapy. Their ability to manipulate light at the nanoscale makes them powerful tools in modern technology, particularly in fields like medicine, environmental monitoring, and renewable energy.