1 December 1985 Quantitative Shadow Method For Measuring A One-Dimensional Refractive Index Distribution
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Abstract
A quantitative shadow method was developed and tested by measuring the one-dimensional refractive index distribution of a polished slab of gradient index glass. Tests made on the known glass sample showed that a one-dimensional index distribution can be measured by shadowgraphy to better than 1% accuracy. The method uses simple optics and can easily be auto-mated to perform rapid measurements. Extension of the shadow method to more general distributions requires making many traverses of the refractive index distribution with a narrow sheet of light.
Robert W. Lewis, Robert W. Lewis, } "Quantitative Shadow Method For Measuring A One-Dimensional Refractive Index Distribution," Optical Engineering 24(6), 241093 (1 December 1985). https://doi.org/10.1117/12.7973635 . Submission:
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