HVM (Holographic Video Microscopy) routines written in IDL (Interactive Data Language) by David Grier to measure the radius, refractive index, and three-dimensional position of a colloidal sphere immersed in a dielectric medium by fitting its digital holographic microscopy image to Mie scattering theory. There is a IDL compatible free GDL (GNU Data Language) incremental compiler.

• Link (18 Mar 2009)