An optical cavity is a structure formed by two or more mirrors that reflect light back and forth, enabling the amplification of light through stimulated emission. The design of the optical cavity is crucial as it helps to establish the conditions necessary for laser action by providing feedback and defining the spatial mode of the laser output. The interaction of light within this confined space leads to the generation of coherent light, which is essential in various advanced applications and technologies.
congrats on reading the definition of Optical cavity. now let's actually learn it.