Abstract
An achromatic Fourier transformer working with spatially coherent but temporally incoherent light is described both theoretically and experimentally. The achromatic Fraunhofer diffraction pattern results from the incoherent superposition of the monochromatic diffraction patterns generated by every spectral component of light. Wavelength compensation is achieved by a specific configuration combining airspaced zone plates and lenses. Several parameters, such as the spectral resolution of the setup or the spectral broadness of the source, govern the accuracy of coincidence of the various monochromatic patterns. Experimental results demonstrate the broadband operation of the system; the error on the achromatic Fourier transformation is 2% over the visible spectrum. Applications in colored image processing are also reported.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
