Abstract
We have made an experimental setup to measure the evanescent wave quantitatively by an ingenious use of spider silk on a prism. The scattered pattern of the wave over the prism is dependent on the diameter and refractive index of a thread of spider silk, and the separation distance between the thread and the prism and on the incident angle of the laser light. This is verified by assuming a model modifying the double cylinder scattering of a laser light. Some of the experimental data and the well corresponding model calculations are presented.
© 2011 AOS
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