input values: n1= 1, n3= 1.5+0.5i, numsteps: 11, incident angle: 55 (deg), sweep_range: + / - 15 deg,
d (RMS surface height):30 nm, wavelength: 1047 nm Comments: * Two sets of values are given for each of ro_perp and ro_para: one for an ideal smooth surface, and one for the rough surface. * Roughness calculations use Kirchoff approximation, which holds only if wavelength >> d, surface slopes are small, and beam illumination is perpendicular to grooves and covers a large number of grooves relative to wavelength. * For roughness calculations, model in Ref [2] further assumes (i) surface should be dieletric and (ii) air is the incident medium. References: [1] M. Born and E. Wolf, "Principles of Optics," 7th Ed, Cambridge University Press, 2005, Chapter 14, section 2, [2] J. A. Sanchez-Gil, A. A. Maradudin, and E. R. Mendez "Limits of validity of three perturbation theories of the specular scattering of light from one-dimensional, randomly rough, dielectric surfaces, "J. Opt. Soc. Am. A V. 12, No. 7, pp. 1547-1558.
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