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Version 0.0.1 (Jun 29, 2021)

  • Initial release

Version 0.0.2 (Jun 30, 2021)

  • Fix a fatal bug in version 0.0.1 that Selfdefinecomponent can not work with multi-components.

Version 0.0.3 (Jul 1, 2021)

  • Add document.
  • Fix a bug that the microring can not return the right pad point when it is rotated.
  • Fix a bug horizonal -> horizontal.
  • Fix a bug Point._eq_ will return False when other==None.

Version 0.0.4 (Jul 21, 2021)

  • Lift restrictions on taper length.
  • Support coordinate transfer for MAKE_COMPONENT.

Version 0.0.5 (Jul 24, 2021)

  • Add self.get_start_point() for AEMD_grating.
  • New Class: SBend & ASBend.
  • Add a constant: pi = math.pi.

Version 0.0.6 (Jul 27,2021) & Version 0.0.7 (Jul 28, 2021)

  • SBend docs update.
  • Variable names: angle -> radian.
  • AEMD gratings can have multiple definitions in a file.
  • AEMD Grating default relative position: RIGHT.
  • New cell function: self.remove_components().
  • If the input filename of "make_gdsii_file" is not "*.gds", it will automatically add ".gds" to the tail.
  • New class: Circle, Rectangle.
  • Add port points definition for Polygon.

Version 0.1.4 & Version 0.1.5 (Sep 6, 2021)

  • FDTD API added.
  • Binary Bat Algorithm & Direct Binary Search Algorithm for inverse design.

Version 0.1.6 (Sep 17, 2021)

  • README.rst for pypi ducumentation.
  • Support numpy array for Polygon definition.
  • Annotation for DBS run.
  • Support cell flatten.
  • Fix a bug: initial_solution in DirectBianrySearchAlgorithm can not be properly defined.

Version 0.1.8 (Sep 25, 2021)

  • Able to derive phase information from monitor.
  • Able to create rectangle&circle pixels with fdtd functions.

Version 0.1.9 (Sep 29, 2021)

  • Pixels region for inverse design.
  • Variable names: point1 -> bottom_left_corner_point, point2 -> top_right_corner_point.

Version 0.2.0 (Oct 29, 2021)

  • Component drawing functions on fdtd_engine with z_start, z_end and material. .
  • Tuple support for definitions.
  • Float index to define material in fdtd (object defined dielectric).
  • Lumerical script eval for fdtd.
  • ArbitraryAngleWaveguide class.
  • Example for DBS.
  • Width property for waveguides.
  • Fix a bug for unexpected rotation in SelfDefineComponent.
  • Self.start_point -> self.start_point_for_return in func:get_start_point of SelfDefineComponent.
  • Able to get backward transmission from mode expansion monitor.

Version 0.2.1 (Nov 3, 2021)

  • ASBend & SBend bugs fixed for 'z_start' attribute missing.
  • AQuarBend & QuarBend bugs fixed for unacceptable 'tuple' parameters.
  • DoubleBendConnector bugs fixed for wrong type definition.

Version 0.2.2 (Nov 9, 2021)

  • Fix bugs for MAKE_COMPONENT rotation errors.
  • Microring add_heater should generate conductor layer on the heater layer.
  • More functions for MODE varFDTD simulation tools.
  • Rename a function in fdtdapi: add_source -> add_mode_source.
  • Function for removing cells.
  • Function for renaming all drawing on Lumerical CAD.

Version 0.2.3 (Nov 10, 2021)

  • Anti-Symmetry boundary condition choice for FDTD simulation region.
  • Fix bugs for material definition with float type parameter.
  • Fix bugs for putting round on Lumerical CAD.
  • Support Fundamental TE mode for add_mode_source in fdtdapi.

Version 0.2.4 (Nov 13, 2021)

  • Anti-Symmetry boundary condition choice for FDTD simulation region.
  • Fix bugs for material definition with float type parameters.
  • Fix bugs for putting round on Lumerical CAD.
  • Support fundamental TE mode for add_mode_source in fdtdapi.

Version 0.2.5 (Nov 26, 2021)

  • add_index_region, add_field_region, add_mesh_region can be defined by z_min&z_max.
  • Support Fundamental TE mode for add_mode_expansion in fdtdapi.
  • Fix a bug for get_transmission error.

Version 0.2.6 (Dec 13, 2021)

  • Fix a bug for mismatching axises in pixelsregion.
  • Fix a bug for wrong data-pass with Scientific notation.
  • Able to set amplitude and phase for mode source.
  • New Function for fdtdapi: reset_source_amplitude and reset_source_phase.
  • Fix a bug for wrong SelfMadeComponent rotation.

Version 0.2.7 (Dec 16, 2021)

  • New Classes for Inverse Design with Adjoint Method: ShapeOptRegion2D, ShapeOptRegion3D, TopologyOptRegion2D, TopologyOptRegion3D, AdjointForShapeOpt, AdjointForTO.

Version 0.2.8 (Dec 21, 2021)

  • Fix a bug for mesh region error in FDTDSimulation.
  • Add draw functions for CirclePixelsRegion&RectanglePixelsRegion.
  • load_file param for FDTDSimulation & MODESimulation.

Version 0.2.9 (Dec 22, 2021)

  • Periodic boundary condition in y-axis direction for FDTD region.
  • Fix a bug for wrong SelfMadeComponent rotation.

Version 0.3.1 (Dec 28, 2021)

  • Fix a bug for wrong field region definition in z-axis.
  • Fix a bug for wrong initialization of RectanglePixelsRegion.

Version 0.3.2 (Jan 4, 2022)

  • New heuristic algorithms for inverse design: BPSO & BGA.
  • Refine variable names for cost functions in heuristic methods.
  • Optimize pixels regions for faster updating.

Version 0.3.4 (Jan 13, 2022)

  • Able to save the fdtdfile without changing working path.
  • Able to create inexistent folders to save figures.

Version 0.3.5 (Jan 18, 2022)

  • Alternative show for figure plot.
  • Able to reset targets for adjoint methods.
  • Add use('AGG') for matplotlib.
  • Enhance reliability for executing simulations.

Version 0.3.6 (Feb 12, 2022)

  • Able to get eigenmode distribution from mode monitor.
  • Enhance reliability for executing simulations.
  • Figures can be shown when it is required in the inverse design regions.
  • Able to get magnetic field intensity from field regions.
  • Able to get power of the sources with specific wavelengths.

Version 0.3.7 (Feb 21, 2022)

  • Able to set items enable/disable for those saved in list or numpy.ndarray.
  • Optimize pixels regions for faster creating.

Version 0.3.8 (Mar 15, 2022)

  • Support vertical sources and monitors.
  • 2D index monitor regions and 2D field monitor regions.
  • Support custom source distribution.

Version 0.3.9 (Mar 21, 2022)

  • FDTD regions can be defined with z_min&z_max.

Version 0.4.3 (Feb 24, 2023)

  • Topology optimization without filters.
  • New components: SimpleAsymmetricDirectionalCoupler, SlowlyVaryingTaper.
  • Add algorithm: ParticleSwarmAlgorithm.
  • Reorganize the submodules.
  • Rename the class: DirectBianrySearchAlgorithm -> DirectBinarySearchAlgorithm.
  • Fix bug for setting the vertical mode expansions.

Version 0.4.4 (Apr 14, 2023)

  • Support for setting background material with name for FDTD regions.

Version 0.4.5 (Apr 15, 2023)

  • Support for resetting simulation wavelengths when the sources are added.
  • Support for resetting wavelength points when the monitors are added.

Version 0.4.6 (May 04, 2023)

  • Support for printing the Point objects.
  • Support for deleting a specified layer for a cell.
  • Support for boolean operations between two layers.
  • Support for dilation and inversion on a layer.
  • Fix a bug for wrong gradient directions of AdjointforTO.call_grad.
  • Support for resetting lower_index and higher_index for topology optimization regions.

Version 0.4.7 (Jun 20, 2023)

  • Fix a bug for the wrong placement of mode expansion monitors.

Version 0.4.8 (Jun 20, 2023)

  • Fix a bug for the wrong placement of field_region monitors.

Version 0.4.9 (Jul 4, 2023)

  • New adjoint method class: AdjointForMultiTO for multi-region topology optimization.
  • New optimization region class: ScalableToOptRegion3D for scalable topology optimization.

Version 0.5.0 (Jul 7, 2023)

  • Fix bugs for the wrong reset operations for the adjoint method classes.

Version 0.5.1 (Sep 6, 2023)

  • Fix the format for call_fom and call_grad for the user-defined fom.
  • Add api reference for ScalableToOptRegion3D and AdjointForMultiTO.

Version 0.5.2 (Sep 11, 2023)

  • Enable backward direction calculations for monitors in the adjoint method.

Version 0.5.3 (May 19, 2024)

  • Topology region can be defined with fdtd_engine=None.
  • Add auto_update option for mode expansion.
  • Add waveguide simulation example.
  • Refine inverse design example for direct binary search.
  • Add layout generation example for direct binary search.
  • Update readme.md
  • Update api reference for pixelated regions.
  • New functions in FDTDSimulation.
  • Add boolean operations example and docs.

Version 0.5.4 (May 21, 2024)

  • Automatically search for Ansys Lumerical Python API.
  • Add use_gpu option for fdtd_region.

Version 0.5.5 (Jul 21, 2024)

  • Add flip rotate scale move operations for layers.

Version 0.5.6 (Aug 25, 2024)

  • Defining material with float refractive index enabled for FDTDSimulation.add_structure_from_gdsii().

Version 0.5.9 (Sep 4, 2024)

  • New pixelated region class: CirclePixelsRegionwithGroup.

Version 0.5.10 (Sep 5, 2024)

  • Added a caching mechanism to some functions that use Lumerical scripts in FDTDSimulation.

Version 0.5.11 (Nov 4, 2024)

  • New functions: add_port, reset_ports_source and get_port_transmission for FDTDSimulation.
  • Add precision parameter for inversion operations.
  • New function: remove_other_cells for Cell.

Version 0.5.15 (Jan 25, 2025)

  • New parameter: relative_point_list for MAKE_COMPONENT function.
  • New function: get_point_list() for customized components.
  • Fix layout bug for CirclePixelsRegionwithGroup.
  • Layer operations for libraries apart from the common_lib.