Localized surface plasmon resonance (LSPR) refers to the collective oscillation of conduction electrons at the surface of metallic nanoparticles when they interact with light. This phenomenon allows these nanoparticles to strongly absorb and scatter light at specific wavelengths, making them highly useful in various applications, such as sensing and imaging. LSPR is a fundamental concept in the field of plasmonics and plays a crucial role in enhancing electromagnetic fields around nanoscale structures.
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