3.2.1. A_FMM.Layer

class A_FMM.Layer(Nx: int, Ny: int, creator: Creator, Nyx: float = 1.0)

Class for the definition of a single layer

__init__(Nx: int, Ny: int, creator: Creator, Nyx: float = 1.0)

Creator

Parameters:

• Nx (int) – truncation order in x direction

• Ny (int) – truncation order in y direction

• Nyx (float) – ratio between the cell’s dimension in y and x (ay/ax)

Methods

T_interface(lay)	Builds the Transfer matrix of the interface with another layer
T_prop(d)	Build the propagation Transfer matrix of the layer
__init__(Nx, Ny, creator[, Nyx])	Creator
add_transform_matrix([ex, FX, ey, FY])	Function for adding matrix of a coordinate transform
calculate_epsilon([x, y, z])	Return epsilon given the coordinates
calculate_field(u[, d, x, y, z, components])	Return field given modal coefficient and coordinates
calculate_field_old(u[, d, x, y, z, components])	Return field given modal coefficient and coordinates
clear()	Removes data created in mode method
coupling(u, up)	EXPERIMENTAL: Calculates coupling between two modes given their modal exapnsion
create_input(dic)	Creates the array of modal coefficient using a dictionary as input
eps_plot([pdf, N, s])	Function for plotting the dielectric consstat rebuit from plane wave expansion
get_Enorm()	Calculate field normalization
get_P_norm()	Creates array of single mode Poynting vector components.
get_Poyinting_norm()	Calculates the normalization matrix for the Poyinting vector calculations
get_Poynting(u[, d])	Calculates total Poynting vector in the layer given arrays of modal expansion
get_Poynting_single(i, u[, ordered])	Return the Poyinting vector of a single mode given the modal expansion in the layer
get_index([ordered])	Returns the effective idexes of the modes
get_input(func[, args, Nxp, Nyp, fileprint])	Expands an arbitrary fieldd shape on the basis of the layer eigenmodes
get_modal_field(i[, x, y, components])	Returns modal field profile
inspect([st])	Function for inspectig the attributes of a layer object
interface(lay)	Builds the Scattering matrix of the interface with another layer
mat_plot(name)	Plot the absolute values of the fourier trasnsform matrices
mode(k0[, kx, ky])	Calculates the eighenmode of the layer
overlap(u[, up])	EXPERIMENTAL: Calculates overlap between two fields given the modal expansion
plot_Ham(pdf)	Plot the matrix of the eigenvalue problem
transform([ex, ey, complex_transform])	Function for adding the real coordinate transfomr to the layer