## Single Slit Diffraction IntensityUnder the Fraunhofer conditions, the wave arrives at the single slit as a plane wave. Divided into segments, each of which can be regarded as a point source, the amplitudes of the segments will have a constant phase displacement from each other, and will form segments of a circular arc when added as vectors. The resulting relative intensity will depend upon the total phase displacement according to the relationship:
| Index Diffraction concepts Fraunhofer diffraction Fraunhofer intensity concepts | |||||||||

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## Single Slit Amplitude ConstructionUnder the Fraunhofer conditions, the wave arrives at the single slit as a plane wave. Divided into segments, each of which can be regarded as a point source, the amplitudes of the segments will have a constant phase displacement from each other, and will form segments of a circular arc when added as vectors. In this way, the single slit intensity can be constructed. | Index Diffraction concepts Fraunhofer diffraction Fraunhofer intensity concepts | ||

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## Graphical Amplitudes: Single SlitUnder the Fraunhofer conditions, the wave arrives at the single slit as a plane wave. Divided into segments, each of which can be regarded as a point source, the amplitudes of the segments will have a constant phase displacement from each other, and will form segments of a circular arc when added as vectors. In this way, the single slit intensity can be constructed. | Index Diffraction concepts Fraunhofer diffraction Fraunhofer intensity concepts | ||

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## Single Slit Peak IntensitiesUnder the Fraunhofer conditions, the wave arrives at the single slit as a plane wave. Divided into segments, each of which can be regarded as a point source, the amplitudes of the segments will have a constant phase displacement from each other, and will form segments of a circular arc when added as vectors. In this way, the single slit intensity can be constructed. | Index Diffraction concepts Fraunhofer diffraction Fraunhofer intensity concepts | ||

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