Lasers -- Resonators, Lasers -- Mirrors, Integral equations, Gaussian beams
The self-consistent integral equation for the field distribution of the resonant modes in an inclined retroreflective grating resonator is solved in the limit of large Fresnel numbers. The transverse field distribution in the direction perpendicular to the grating grooves can be described in terms of Hermite-Gaussian functions provided that λ « d « w, where λ is the wavelength, d is the grating spacing, and w is the beam spot size.
Guo-Sheng Zhou, Lee W. Casperson . Modes of a laser resonator with a retroreflective mirror. Applied Optics, Volume 20, Number 9 (May 1981), pp. 1621-1625.