Explain the difference between Fresnel diffraction and Fraunhofer diffraction. Comment on the behavior of fields and...

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Explain the difference between Fresnel diffraction and Fraunhofer diffraction. Comment on the behavior of fields and how they interfere in each zone, and explain if there is a sudden or smooth transition from the Fresnel zone to the Fraunhofer zone? (3 marks) Describe how you would write Python code that could model the far-field diffraction pattern of a rectangular aperture source. Note: Precise syntax is not required, just a description of the steps to be taken in the code. (4 marks) Consider the Python code, required in part (b) above, to model the far-field pattern of a rectangular aperture source. Explain if this same theory and code could be used to model the near-field radiation patterns? For a given wavelength of light, and source dimensions a and b, define the typical *cut-off propagation distance z, below which the far-field approximations should not be used. (3 marks) Explain the difference between Fresnel diffraction and Fraunhofer diffraction. Comment on the behavior of fields and how they interfere in each zone, and explain if there is a sudden or smooth transition from the Fresnel zone to the Fraunhofer zone? (3 marks) Describe how you would write Python code that could model the far-field diffraction pattern of a rectangular aperture source. Note: Precise syntax is not required, just a description of the steps to be taken in the code. (4 marks) Consider the Python code, required in part (b) above, to model the far-field pattern of a rectangular aperture source. Explain if this same theory and code could be used to model the near-field radiation patterns? For a given wavelength of light, and source dimensions a and b, define the typical *cut-off propagation distance z, below which the far-field approximations should not be used. (3 marks)

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Fresnel Diffraction vs Fraunhofer Diffraction Fresnel Diffraction Behavior of Fields In the Fresnel zone both the incident and diffracted waves have s... View the full answer