title: Laser beam divergence utilizing a lateral shearing interferometer.
abstract: An analysis of the lateral shearing interferometer is given for laser beams. The results enable a simple determination of the local radius of curvature of the wavefront. In addition, the presence of phase distortion in the beam may be ascertained.
authors.forename: M E
authors.initials: ME
authors.lastname: Riley
authors.forename: M A
authors.initials: MA
authors.lastname: Gusinow