How are Localized Electromagnetic Fields Generated?
Localized electromagnetic fields are typically generated using [nanostructures](https://) designed to support high field confinement. Some of the common structures include: - Plasmonic Nanoparticles: These are metallic nanoparticles that can confine light to volumes much smaller than the wavelength of light, leading to strong field enhancements. - Photonic Crystals: These are periodic dielectric structures that can create band gaps, preventing the propagation of certain wavelengths and localizing fields in defect regions. - Metamaterials: These are artificially engineered materials with properties not found in nature, capable of manipulating electromagnetic waves in unconventional ways.
