PHISE — PHotonic Interferometric Simulation for Exoplanets#

PHISE is a Python package for simulation and analysis of interferometric instruments using layered photonic chips. It provides high-level classes (telescopes, interferometer, kernel nuller, camera, target scene) and numerical modules (propagation, coordinates, MMI recombiners, test statistics) to build scenarios, simulate the instrument chain, and visualize responses (transmission maps, projected baselines, null/dark/bright outputs, etc.).

The repository also ships demo notebooks and a complete documentation

Note PHISE is currently under active development and is still a part of a PhD research project. The API and functionalities may change at any time.

Requirements and installation#

  • Python 3.11 or upper.

  • Main dependencies: numpy, astropy, scipy, matplotlib, numba, ipywidgets, sympy, LRFutils, etc. (handled automatically).

Two installation paths:

  1. Conda environment (recommended)

conda env create -f environment.yml
conda activate phise

  1. pip editable install (dev mode)

pip install -e .

Documentation#

A complete documentation is available at https://phise.readthedocs.io/

Design notes#

  • Physical quantities are handled with astropy.units and validated in property setters to ensure unit consistency.

  • Heavy computations rely on numpy and numba where appropriate.

  • High-level methods (Context) automatically propagate parameter changes (e.g., recompute projected positions and photon flux).

Credits#

  • Lead author: Vincent Foriel.

  • If you use PHISE in scientific work, please cite the repository and/or your related publications.

Questions, bugs, contributions#

Issues and contributions are welcome. Feel free to propose improvements (docs, tests, examples, new utilities in modules/, etc.) by opening an issue or a pull request.