confocal volume

Related to the confocal point-spread function (PSF), it is the smallest discrete volume that can be detected in a confocal system, usually on the order of femtoliters with high NA objectives.

See also: confocal microscopy, confocal point-spread function, fluorescence correlation spectroscopy, voxel

Learn more:

Introductory Confocal Concepts

A discussion of point scanning and pinhole detection using photomultipliers.