A new computational method of obtaining optical constants from reflectance ratio measurements
- 1 December 1972
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 5 (12) , 2288-2291
- https://doi.org/10.1088/0022-3727/5/12/318
Abstract
A rapid accurate computational procedure has been devised for obtaining n and k from reflectance ratio values measured at two angles of incidence, θ1 and θ2. This technique has been used to study the sensitivity of the reflection ratio method, and it is shown that the errors are less than 2% in the product nk(nk less-than-or-eq, slant 6), when the reflection ratios are in error by ±0005, or θ1 and θ2 are in error by ±01°, for measurements in the angular ranges 58° less-than-or-eq, slant θ1 less-than-or-eq, slant 67° and 80° less-than-or-eq, slant θ2 less-than-or-eq, slant 81°.Keywords
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