strapy - scattering and transfer matrix model, python

posted on 01.04.2020 by Angus Bridges, Andrew Yacoot, Thomas Kissinger, Ralph Tatam

strapy is python package implementing the combined transfer and scattering matrix modelling approach described in [1], jointly developed by the National Physical Laboratory and the Centre for Engineering Photonics at Cranfield University as part of an EPSRC funded iCASE studentship. The primary motivation to develop this software was to model the effects of multiple reflections and polarisation leakage within the optics of homodyne displacement measuring interferometers, however strapy is generally applicable to modelling the propagation of monochromatic light through networks of planar optical components.

This archive record holds copies of strapy, along with the ctmm dependency and their respective documentation, as they were at the time of publication. For up to date copies of the software and documentation please refer to:

If you find an interesting application for strapy please let us know. If you want to cite results found using strapy please cite the accompanying publication and the software DOI:

  • A. Bridges, A. Yacoot, T. Kissinger, R. P. Tatam, “Polarisation-sensitive transfer matrix modelling for displacement measuring interferometry”, awaiting publication
  • Cranfield University research data repository - 10.17862/cranfield.rd.12001236

[1] "Polarisation-sensitive transfer matrix modelling for displacement measuring interferometry", A. Bridges, A. Yacoot, T. Kissinger and R. P. Tatam, awaiting publication.


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