Peter Bienstman - Ghent University <Peter.Bienstman@rug.ac.be>
  Main author

Lieven Vanholme - Ghent University <Lieven.Vanholme@rug.ac.be>
  Generalised eigenvalue solver for Bloch modes, general excitations,
  visualisation

Mihai Ibanescu - MIT: <michel@mit.edu>
  Multiring circular structures
