Talbot cavity
= Talbot cavity
{wiki=Talbot_cavity}
A Talbot cavity is a type of optical cavity that utilizes the Talbot effect, which is a diffraction phenomenon that occurs when coherent light, such as a laser beam, interacts with a periodic structure. The Talbot effect allows for the self-imaging of an object at certain distances known as the Talbot distances, which are based on the wavelength of the light and the periodicity of the structure.