software package for FDTD simulation with Python


Meep is a free and open-source software package for electromagnetics simulation via the finite-difference time-domain (FDTD) method.

Its features include:
  * Free and open-source software under the GNU GPL.
  * Complete scriptability via Python, Scheme, or C++ APIs.
  * Simulation in 1d, 2d, 3d, and cylindrical coordinates.
  * Distributed memory parallelism on any system supporting MPI.
  * Arbitrary anisotropic electric permittivity ε and magnetic permeability μ,
    along with dispersive ε(ω) and μ(ω) including loss/gain,
    nonlinear (Kerr & Pockels) dielectric and magnetic materials,
    electric/magnetic conductivities σ, and saturable gain/absorption.
  * Perfectly-matched layer (PML) absorbing boundaries as well as
    Bloch-periodic and perfect-conductor boundary conditions.
  * Exploitation of symmetries to reduce the computation size, including
    even/odd mirror planes and 90°/180° rotations.
  * Arbitrary current sources including a guided-mode launcher.
  * Frequency-domain solver for finding the response to a
     continuous-wave (CW) source.
  * ε/μ and field import/export in the HDF5 data format.
  * GDSII file import for planar geometries.
  * Materials library containing predefined broadband, complex
    refractive indices.
  * Field analyses including Poynting flux, mode decomposition, near to far
    transformations, frequency extraction, local density of states (LDOS),
    modal volume, Maxwell stress tensor, arbitrary functions; completely

This package contains the Python binding

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