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Direct Coherent Optical Fourier Transform of Curves
April 1975 (vol. 24 no. 4)
pp. 434-442
F.L. Lanzl, Institut fuer Angewandte Physik, University of Hamburg
A coherent optical Fourier transform system is studied for which masks of curves only are used as input. A general theory for this problem is discussed, resulting in the functional connection between input and output data and limitations due to thickness, curvature, and extension of the curve. The general result can be simplified for a curve which represents a signal modulated by a carrier. In this case the Fourier transform of the signal can be found optically in first-order diffraction. The method is applied to interferogram curves arising in Fourier spectroscopy.
Index Terms:
Analog computers, coherent optical Fourier transform, coherent optics, Fourier spectroscopy, Fourier transform, optical computers.
F.L. Lanzl, H. Heitmann, "Direct Coherent Optical Fourier Transform of Curves," IEEE Transactions on Computers, vol. 24, no. 4, pp. 434-442, April 1975, doi:10.1109/T-C.1975.224239
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