Figure 4
(a) Image in the optical microscope of the Au strip on the membrane. The inset shows locations where reflecto-interferograms were recorded crossing the Au edge. (b) Interferogram detected at position 1 on the membrane/air interface. (c) Interferogram recorded at position 2 at the boundary membrane/air and membrane/gold/air interface. (d) Interferogram registered at position 3 on the membrane/gold/air interface at the centre of the gold strip. |