It is shown that differences in intensity of the light transmitted by a narrow, deep slit are produced by changing the material of the sides though other conditions are kept constant. With a pair of optically plane surfaces of each of the metals, steel, nickel, gold, silver and copper, a slit was prepared which could be varied in width while the depth remained constant. For each of these metals a curve was prepared showing the variation of transmitted light intensity with change in width of slit. Comparison of the curves for the various metals shows a fairly close agreement for small and for large openings of the slit while considerable differences occur in an intermediate region.
Proceedings of the Iowa Academy of Science
©1924 Iowa Academy of Science, Inc.
Smith, Clarence R.
"The Effect of the Material Composing the Sides of Deep Slits on the Intrinsic Intensity of Light Transmitted through the Slits,"
Proceedings of the Iowa Academy of Science, 31(1), 379-379.
Available at: https://scholarworks.uni.edu/pias/vol31/iss1/125