Angular distribution of radiant intensity from sources of different degrees of spatial coherence |
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| Authors: | E Wolf William H Carter |
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| Institution: | Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA;Naval Research Laboratory, Washington, D.C. 20375, USA |
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| Abstract: | The relationship that exists between the state of coherence of a source and the angular distribution of the radiant intensity is investigated. It is found that the radiant intensity from a large, planar, statistically homogeneous source is related in a simple way to the Fourier transform of its degree of spatial coherence. This result is illustrated by curves that show the angular distribution of radiant intensity for gaussian correlated sources. The curves demonstrate in a striking way how spatial coherence of the source affects the directionality of a light beam that the source generates. |
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