Single-element diffractive optical system for real-time processing of synthetic aperture radar data

Filippus S. Roux

doi:10.1117/12.207477

20 April 1995 Single-element diffractive optical system for real-time processing of synthetic aperture radar data

Filippus S. Roux

Proceedings Volume 2404, Diffractive and Holographic Optics Technology II; (1995) https://doi.org/10.1117/12.207477
Event: Photonics West '95, 1995, San Jose, CA, United States

Abstract

We present an optical system for the polar formatting of data in a spotlight mode SAR. This system is implemented with only one holographic optical element (HOE). Previously such a HOE could not be produced because the phase of the required transmission function of the HOE does not obey the continuity condition which is prerequisite for the conventional implementation of such optical transforms. Here we show how a HOE can be produced to perform the complete polar formatting transform by incorporating branch point phase singularities in the transmission function of the HOE. The computation of the transmission function is shown and numerically computed diffraction patterns obtained from this HOE are also shown.

Citation Download Citation

Filippus S. Roux "Single-element diffractive optical system for real-time processing of synthetic aperture radar data", Proc. SPIE 2404, Diffractive and Holographic Optics Technology II, (20 April 1995); https://doi.org/10.1117/12.207477

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