FIELD: physics.
SUBSTANCE: proposed method comprises measuring surface electromagnetic wave (SEW) intensity after the wave runs over two different distances on specimen flat surface and SEW field penetration into specimen surrounding medium. Reflectivity actual and imaginary parts are calculated by the following formulas:
where k1 is SEW reflectivity actual part, k2 is imaginary part, ko = 2π/λ, λ is length of body wave generating SEW in vacuum, δ is depth of SEW field penetration in ambient medium with dielectric factor ε, I1 and l2 are intensities of SEW field after wave runs over l1 and l2 (with l2>l1).
EFFECT: higher accuracy of surface wave reflectivity actual part determination.
1 dwg
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