What Are the Types of Optical Resonators in Nanotechnology?
Several types of optical resonators can be engineered at the nanoscale:
Photonic Crystals: These are materials with periodic dielectric structures that create band gaps for certain wavelengths of light, effectively trapping them. Plasmonic Resonators: These utilize surface plasmon resonances at metal-dielectric interfaces to confine light at the nanoscale. Whispering Gallery Mode (WGM) Resonators: These are circular or spherical resonators where light waves circulate along the perimeter due to total internal reflection. Fabry-Perot Cavities: These consist of two parallel mirrors that create standing wave patterns of light between them.
