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Simulation for Realizing Fresnel Diffraction of Square Aperture Based on Coherence Superposition of Wavelets Algorithm

HE Long-qing

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Abstract

The intensity distribution of Fresnel diffraction field for square aperture are analyzed and simulated through numerical method.A high performance algorithm of numerical calculations for square aperture diffraction and corresponding MATLAB programs and simulations are presented.The results indicate that the intensity distribution of diffraction light field is determined by Fresnel Number.And the value of Fresnel Number on transition from Fresnel diffraction to Fraunhoer diffraction is discussed.

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What this paper is about

The intensity distribution of Fresnel diffraction field for square aperture are analyzed and simulated through numerical method.A high performance algorithm of numerical calculations for square aperture diffraction and corresponding MATLAB programs and simulations are presented.The results indicate that the intensity distribution of diffraction light field is determined by Fresnel Number.And the value of Fresnel Number on transition from Fresnel diffraction to Fraunhoer diffraction is discussed.

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Available abstract

The intensity distribution of Fresnel diffraction field for square aperture are analyzed and simulated through numerical method.A high performance algorithm of numerical calculations for square aperture diffraction and corresponding MATLAB programs and simulations are presented.The results indicate that the intensity distribution of diffraction light field is determined by Fresnel Number.And the value of Fresnel Number on transition from Fresnel diffraction to Fraunhoer diffraction is discussed.

Key concepts: Fresnel diffraction, Diffraction, Fresnel number, Fresnel integral, Optics, Superposition principle, Fresnel zone, Square (algebra)

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