We report on millimeter-wave imaging systems being developed for both near-field analysis and quasi-optical image processing. As well as simple near field transmission, we also consider Gaussian beam mode telescope based imaging, which utilizes spatial filtering techniques from Fourier optics, for the imaging of biological samples and other applications. We also report on near-field wave-front reconstruction techniques from holography and show how the techniques can also be used for imaging the phase centre of nonstandard feed antennas. Finally, we briefly summarise progress on the development of Fourier gratings as a method for producing multiple images of a coherent local oscillator source. Such schemes will be necessary for the development of inexpensive multiplexers for heterodyne detection schemes for sensitive array imagers and cameras.


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    Title :

    Quasi-optical millimetre-wave imaging with bio-medical applications


    Contributors:
    Lanigan, W. (author) / Murphy, J.A. (author) / May, R. (author) / Mahon, R. (author) / McAuley, I. (author) / Markham, C. (author) / Humphries, K. (author) / Ward, T. (author) / Withington, S. (author)


    Publication date :

    2005-01-01


    Size :

    1804525 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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