A new method for phase grating testing and measurement |
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Authors: | JMC Jonathan |
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Institution: | Institut d''Optique et Laboratoire d''Optique, Université Pierre et Marie Curie, 4 place Jussieu, 75230 Paris cedex 05, France |
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Abstract: | A setup in described that gives a very simple visual demonstration of phase grating non-uniformities, such as modulation variations. The principle of the method is that the amplitude transmittance of a phase grating is a chromatic function. We show how this setup can be modified to measure the modulation in the case of a uniform grating. The method is described here in the case of the binary phase grating. |
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