MIT Photonic-Bands: http://ab-initio.mit.edu/mpb

A program for computing photonic band structures, developed by Steven G. Johnson (stevenj@alum.mit.edu), originally in the Joannoupoulos Ab-Initio Physics group in the MIT Physics Department and now in MIT Applied Mathematics

See the MIT Photonic-Bands web page, for a complete description of the package and its user interface, as well as installation instructions, the license and copyright, contact addresses, and other important information.