Method and system for obtaining n and k map for measuring...

Details Method and system for obtaining n and k map for measuring... Method and system for obtaining n and k map for measuring...

2011-06-28

2011-06-28

Toatley, Gregory J (Department: 2877)

Optics: measuring and testing

By polarized light examination

Of surface reflection

Reexamination Certificate

active

07969573

ABSTRACT:
A method for obtaining a refractive index (n) and extinction coefficient (k) map of a slider surface, the method comprising the steps of processing an image of the slider surface to obtain spatially resolved normalized intensity data of the slider surface; measuring n and k values of the slider surface at different areas of the slider surface to obtain reflectivity data of the slider surface; mapping a distribution of the normalized intensity data to a distribution of the reflectivity data for deriving the n and k map of the slider surface.

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