Changelog

Version 0.22.6 - 2025-10-16

Added

  • Improved Examples

  • Updated refractiveindex.info database

Version 0.22.5 - 2025-09-23

Added

  • Tests for windows

Fixed

  • Encoding problems of refractiveindex.info files under windows

Version 0.22.4

Bugfixes

  • Fix for an error when copying of an IndexDispersion created from a Dispersion

  • Fix for reading of woollam data if no dpolE is present

Version 0.22.3

Bugfixes

  • Pin Plotly to a version smaller than 6, to avoid problems with the fitting widget (#203).

Version 0.22.2

Bugfixes

  • Fix publishing workflow

Version 0.22.1

New

  • convert_delta_range function

Bugfixes

  • Allow all valid Delta ranges in the Result class

Version 0.22.0

New

  • Python 3.13 support

  • Updated dependencies

  • Updated refractive index database

Bugfixes

  • SciPy performance regression fixed with Version 1.15

Version 0.21.2

Bugfixes

  • Include the RII database submodule in the Pypi package again

Version 0.21.1

Bugfixes

  • Fix documentation generation

Version 0.21.0

New

  • Reenable pytorch 4x4solver

  • Use OIDC for publishing

  • Add custom fitting example

  • Add chardet encoding detection

  • Add reader for accurion data

Bugfixes

  • Fix deprecation warnings

Version 0.20.0

New

  • Vectorized KKR

  • NumPy 2.0.0 support

Bug fixes

  • Fix root selection mistakes for Bruggeman EMA

Known issues

  • Performance regression for newer SciPy versions of expm solver (#178)

Version 0.19.0

New

  • Python 3.12 Support

  • Averaging of ResultLists

  • Breaking change: Renamed RII.load_dispersion to RII.get_dispersion to be more consistent.

Version 0.18.1

Bug fixes

  • Bump pygments from 2.13.0 to 2.15.0

  • Bump tornado from 6.3.2 to 6.3.3

  • Fixes wvase importer

Version 0.18.0

What’s Changed

  • Update spectraray importer

  • Update RII database and use new file structure

  • Bump scipy from 1.9.1 to 1.10.0

  • Adds woollam importer

Version 0.17.0

New

  • Support for NXopt based nexus definitions

  • Interpolation order for refractiveindex.info database

  • Speed up for formula dispersions

Bug fixes

  • Better error messages

  • Raise error when solver2x2 gets a negative k

Version 0.16.0

New

  • Support for nexus dispersion files

  • Formula based dispersions

  • Cauchy Urbach dispersion

  • Filtering by range for the refractive index database

Bug fixes

  • Fixed a bug where incompatible dispersions were created in refractive index database

  • Created separated index and dielectric dispersions

  • Fixed checks for DispersionSums when dispersions are entered via *args

Version 0.15.1

New

  • Support for Python 3.11

  • Pseudo dielectric dispersion

Bug fixes

  • Small fix in reading of rii dispersions

  • Don’t allow adding of refractive index based dispersions

  • Don’t allow adding of tabular dispersions

Version 0.15.0

New

  • Include the Refractiveindex.info database and import and search scripts to access it

  • Kramers-Kronig-Relationship conversions for dielectric functions

  • Add Cody-Lorentz dispersion model

Version 0.14.1

Bug fixes:

  • Installs the correct extra requirements in the docker container

Version 0.14.0

Breaking changes:

  • Moved importers into the importers submodule

  • Split the spectraray class into a class to load a dispersion table and an importer

Bug fixes:

  • Introduced proper dependency management

  • Changed the dependency of extra install requirements for fitting and testing

Version 0.13.0

Breaking Changes:

  • Moved math submodule into utils, to avoid name conflict with Python’s math module

Bug fixes:

  • Fix error in eigenvalue sorting (PropergatorEig and non-isotropic backmaterials)

  • Pin version of ipywidgets to keep plotly working

Version 0.12.0

Breaking Changes:

  • Renamed the conversion functions and added more

  • result.R and .T now return the reflectance/transmittance instead of the respective matrix, which can be accessed with .R_matrix/.T_matrix

  • Renamed PropagatorExpmScipy to PropagatorExpm

  • Removed Torch and Tensorflow Solvers

New:

  • Added a lot of documentation

  • Added a Bruggeman EMA Material

  • Support for transmissive Ellipsometry

Bug fixes:

  • Fix nan values in MaxwellGarnettEMA

Version 0.11.0

Version 0.10.1

  • The fitting module is not imported at top-level anymore. It has now to be imported by elli.fitting.

Version 0.10.0

  • Dispersions are now addressed by their name only (instead of Dispersion…)

  • Dispersions are initialized with two distinguished set of parameters for parameters which are set once and parameters which may be set multiple times (for oscillators etc). They can be added by invoking the add command on the respective class.

  • There is a new factory class DispersionFactory to get a dispersion from it’s string name, i.e. DispersionFactory.get_dispersion(...)

Version 0.9.2

  • Fitting decorator buttons (fit, undo, redo)

  • Data export for decorators

  • Changed file loading to -pi, pi delta convention

  • Fixed Jones vector default

  • Included more documentation

Version 0.9.1

  • Automated build of Docker images

  • Benchmarking setup

  • Added more documentation

  • Renamed a lot of functions for PEP8 compliance

  • More Bug fixes

Version 0.9.0

  • Adapted examples to the new codebase

  • Added a first batch of unit tests

  • Reimplemented inhomogeneous and mixed materials

  • Changed the sign convention of the E_rp vector

  • Improve fitting decorators

  • Added plotting and fitting for Mueller matrices

  • Added type hints

  • Various calculation Bug fixes

Version 0.1.0

  • Initial Version after un-forking

  • Complete rewrite of module structure

  • Vectorization of calculations for massive speed-up

  • Packaging as PyPi package

  • Added additional dispersion models

  • Added helper utilities for data-handling