Abstract
An achromatic Fourier transforming system is analyzed in a manner which gives new physical insight. A matched spatial filtering experiment is performed comparing the noise performance of a coherently produced matched filter and one made using broad spectrum light in an achromatic Fourier transforming system. The broad spectrum light is obtained by scanning a dye laser through its tuning range, thereby simulating a polychromatic point source. The system is applied to the construction of low noise holographic optical elements.
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