We recognize that one can adapt any dispersion-compensated broadband optical Fourier transformer to achieve wavelength compensation in the Fresnel diffraction region just by inserting a diffractive lens at the input plane and vice versa. This unification procedure is employed in a second stage in the design of a novel hybrid (diffractive–refractive) optical setup that provides, in a sequential way, nearly wavelength-independent Fresnel diffraction patterns in the irradiance of the object transmittance.
© 2002 Optical Society of America
(050.1940) Diffraction and gratings : Diffraction
(050.1970) Diffraction and gratings : Diffractive optics
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(070.2590) Fourier optics and signal processing : ABCD transforms
(070.6760) Fourier optics and signal processing : Talbot and self-imaging effects
J. Lancis, G. Mínguez-Vega, E. Tajahuerce, M. Fernández-Alonso, V. Climent, and P. Andrés, "Wavelength-compensated Fourier and Fresnel transformers: a unified approach," Opt. Lett. 27, 942-944 (2002)