V. Arrizon et Jg. Ibarra, SELF-IMAGING OF DISCRETE GRATINGS AT FRACTIONS OF THE TALBOT DISTANCE- AN EIGENVALUE PROBLEM, Optics letters, 21(6), 1996, pp. 378-380
Using a matrix formulation of Fresnel diffraction, we describe discret
e gratings that exhibit self-images at fractions of the Talbot distanc
e. Such structures are obtained as solutions of an eigenvalue equation
.