​Abstract. Optical computing is a promising area of modern science and technology. Optical computing logical elements could be based on the different optoelectronic techniques or optical space modulators. One of the possible techniques for optical computing is using multi-slit interference. The accuracy of various optical experiments was hampered by the difficulty of making appropriate narrow slits for 2- or 3-slit diffraction experiments. The solution to these and similar technical difficulties could be to alter the radiation spectrum from the classical optical range in the microwave region. In the present paper, we present preliminary two- and three-slit interference microwave test experiments. For the interference, we used different metal coatings with two and three slits with different widths. Diffraction experiments were done for the 37.3 and 48.3 GHz microwave frequencies. We could investigate possibilities to manage microwave two- and three-slit interference by changing microwave polarization and introducing a time delay in the microwave path. During the investigation, we seek quantum effects in the near Fresnel zone and far Fraunhofer zones. This paper investigates the feasibility of modeling wave scattering on various volumetric objects (microwave transducers) using a physically based neural network approach also.

Keyword: Diffraction, Interference, Multiple-slit experiments, Microwave photonics, Photonic computing, Microwave wavefront transducer

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