Abstract
The optical Fourier transform provided by an ideal achromatic Fourier transformer is located in a single Fraunhofer plane, but with the same magnification for each wavelength [1]. Similarly, an achromatic Fresnel diffraction pattern results from the in-plane superposition, with the same scale, of the incoherent monochromatic versions of a specific Fresnel pattern generated by the spectral components of the incident light.
© 1992 Optical Society of America
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