The propagation of a complex amplitude distribution in quadratix-index material is studied by the characteristic point function, and we determine the maximum distance for which an optical image and transform can be transmitted without estimable loss of information due to modal dispersion.
© 1983 Optical Society of America
C. Gomez-Reino, E. Larrea, and M. V. Perez, "Complex amplitude propagation through a quadratic-index medium: characteristic point function," Appl. Opt. 22, 2927-2929 (1983)