lfief — lfief • planar

Local field intensity enhancement factors in a multilayer

lfief(wavelength = 500, angle = 0, polarisation = "p", thickness = c(0,
  20, 140, 20, 0), dmax = 200, res = 1000, res2 = res/10,
  epsilon = list(1^2, -12, 1.38^2, -12, 1.46^2), displacement = FALSE, ...)

Arguments

wavelength: wavelength
angle: angle
polarisation: polarisation
thickness: vector of layer thickness
dmax: maximum distance to interface, if > layer thickness
res: resolution of sampling points
res2: resolution of sampling points outside stack
epsilon: list of permittivities
displacement: logical, Mperp corresponds to displacement squared (D=epsilon x E)
...: further args passed to multilayer

Value

long format data.frame with positions and LFEF (para and perp)

Details

returns the LFIEFs as a function of distance inside and outside of the structure

References

Principles of surface-enhanced Raman spectroscopy and related plasmonic effects

Eric C. Le Ru and Pablo G. Etchegoin, published by Elsevier, Amsterdam (2009).

See also

Other helping_functions: classify, internal_field, invert_stack, modify_levels