Microrheology tools for IDL

IDL tools:

• msd.pro & documentation -- finds mean square displacement (the "MSD")
• micrheo.pro & documentation -- converts a MSD to viscoelastic moduli
• msd2pnt.pro & documentation -- calculates a 2-particle correlation function; see article below
• msdd.pro & documentation -- helps convert the 2-particle data into an effective MSD

Related information:

• "Two-point microrheology of inhomogeneous soft materials"
  JC Crocker, MT Valentine, ER Weeks, T Gisler, PD Kaplan, AG Yodh, and DA Weitz, Phys. Rev. Lett. 85, 888 (2000).
  
  • View abstract / PDF version
• General microrheology explanation, including 2-particle technique

These programs were written by John, the documentation for them was written by Brenton Hoffman (a student working with John), and everything HTML-ized by Eric.

Contact us

• John Crocker: jcrocker(at)seas.upenn.edu
• Eric Weeks: weeks(at)physics.emory.edu