• A K Kapil

      Articles written in Pramana – Journal of Physics

    • Thin film thickness step gauge

      S K Gupta A K Kapil C M Singal V K Srivastava

      More Details Abstract Fulltext PDF

      The Blodgett-Langmuir technique is used to deposit multilayer films of barium stearate on EDF glass. The thickness of the film varies in steps of 10 monolayers, and the thickness of each monolayer is about 25 Å. When viewed in white light at near normal incidence vivid interference colours are seen in reflection, with good contrast between adjacent steps. The reliability of the step gauge is tested for dielectric films of MgF2.

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