Light intensity from the transmission of a bunch of plane waves at a planar interface
collection_ml(xyz, wavelength = 632.8, omega = c(40, 50) * pi/180, psi = 0, epsilon = c(1.5^2, epsAg(wavelength)$epsilon, 1^2, 1^2), thickness = c(0, 50, 10, 0), maxEval = 3000, reqAbsError = 0, tol = 1e-04, progress = FALSE)
data.frame intensity at the x, y, z position
Integration is performed over the solid angle defined by omega