A generalization of the fractional Talbot effect to the case of a tapered gradient-index medium for uniform illumination is considered. A unit cell of the fractional Talbot image contains the superposition of unit cell images of the periodic object.
© 2000 Optical Society of America
(070.6760) Fourier optics and signal processing : Talbot and self-imaging effects
María Teresa Flores-Arias, Carlos R. Fernandez-Pousa, María Victoria Perez, Carmen Bao, and Carlos Gómez-Reino, "Fractional Talbot effect in a tapered gradient-index medium: unit cell," J. Opt. Soc. Am. A 17, 1007-1011 (2000)