Fundamentals of Nanophotonics, Plasmonics, and Metamaterials

The ability to manipulate light at scales below its wavelength is revolutionizing modern technology, from ultra-fast computing to advanced medical diagnostics. This text-only course guides you through the foundational physics of nanophotonics, plasmonics, and metamaterials, turning complex electromagnetic theories into clear, accessible concepts. You will begin with essential wave equations and key terminology before progressing to practical nanoscale applications. By reading through our structured explanations, you will gain a solid conceptual framework for analyzing and designing sub-wavelength optical devices. Learn the fundamental principles of light-matter interaction at the sub-wavelength scale. Explore surface plasmon polaritons and localized surface plasmons for sensing applications. Analyze how artificial nanostructures and metamaterials achieve negative refractive indices. Study modern metasurfaces and their applications in flat optics and metalenses. Understand the basic computational design workflows used to model nanophotonic systems. The course starts with essential electromagnetic theory and foundational definitions before moving on to plasmonic structures, engineered metamaterials, and contemporary design paradigms. This course is designed for undergraduate students, researchers, and engineers new to nanotechnology, requiring only a basic background in introductory physics and calculus. Start reading today to unlock the potential of light-based technologies.