Calculates the design field and the magnitude of its gradient for lengthscale indicators [1]. Parameters ---------- x : array_like

Returns the density weights for a multilayer stack as a levelset. Args: layer_thickness_um: thickness of each layer in the stack. Retu

Returns the density weights for a binary grating as a levelset. Args: grating_height_um: the height of the grating. Returns: The

Constraint function for the minimum line width and spacing. Args: result: evaluation of this constraint function, modified in place.

Loads a fields from the file `fname`.

Load the Fourier-transformed fields into the given force object (replacing any values currently there) from the `ForceData` object `f

As `load_near2far_data`, but negates the Fourier-transformed fields after they are loaded. This means that they will be *subtracted*

Loads a structure from the file `fname`.

Given a `mp.Volume`, returns the integral of the magnetic-field energy $\\mathbf{H}^* \\cdot \\mathbf{B}/2$ in the given volume. If t

this routine subsumes the content of the old 'read_epsilon_file' routine

/ / /

Set Vinv = inverse of V, where both V and Vinv are complex matrices.*/

As `integrate_field_function`, but returns the maximum absolute value of `func` in the volume `where` instead of its integral.

for Lorentzian susc. the internal data is just a backup of P from the previous timestep.

Wrapper for NLopt FOM. Args: x: Degrees of freedom array. gradient: Gradient of FOM. opt: Optimization problem object.

Returns True if the partition has more than one node with the same proc_id. Args: partition: the BinaryPartition node Returns: A

approximate comparisons of phases to 1 or -1. exp(ix) * exp(-ix) is not exactly 1 due to roundoff errors, but we want to treat it equal for the p

Computes the number of pixels contained in a 2D or 3D grid_volume object. NOTE: This assumes that z=0 means 2D simulation and z>0 means 3D.

Returns the flux from a linearly polarized planewave above a ground plane. Args: kx, ky, kz: the wavevector components of the planew

Returns the radiated flux from a planewave source above a ground plane. Args: kx, ky, kz: the wavevector components of t

Returns the wavevector of the outgoing planewave in free space. Args: polar_rad: polar angle of the wavevector for φ = 0 (xz plane). 0 is

Returns the wavevector of the outgoing planewave in free space. Args: polar_rad: polar angle of the wavevector for φ = 0 (xz plan

Computes the Purcell enhancement factor of a point dipole in a planar dielectric cavity with lossless metallic walls using equation 7 of:

Computes the radiation pattern from the far fields. Args: e_field, h_field: the electric (Er, Ep, Ez) and magnetic (Hr, Hp, Hz)

Returns the vector rotated by an angle *`theta`* (in radians) in the right-hand direction around the *`axis`* vector (whose length is

Run shape optimization using a cross as a starting guess. Args: resolution: Simulation resolution in pixels/micron. beta: Tanh fu

/ find a polygon on the given GDSII layer and set the libctlgeom */ geometry to the size of its bounding box. */ if Text is non

This can be called in a step function, and is useful for changing the geometry or default material as a function of time.

sort the array to maximize the spacing of each point with the previous points */

Returns the geometry of the LED-like structure. Args: is_textured: whether the substrate is textured or not.

like susceptibility_equal in ctl-io.cpp, but ignores sigma and id (must be updated manually, re-copying from ctl-io.cpp), if we add new suscepti

like susceptibility_equal in ctl-io.cpp, but ignores sigma and id (must be updated manually, re-copying from ctl-io.cpp), if we add new suscepti