In this paper we determine the location of image and transform planes and the equivalent focal length for a parabolic gradient-index rod, and we consider the problem of modal propagation.
© 1985 Optical Society of America
C. Gómez-Reino, E. Larrea, M. V. Pérez, and J. M. Cuadrado, "Imaging, transforming, and modal propagation in a parabolic gradient-index rod," Appl. Opt. 24, 4379-4382 (1985)