title: Direct conversion of rheological compliance measurements into storage and loss moduli.
abstract: We remove the need for Laplace/inverse-Laplace transformations of experimental data, by presenting a direct and straightforward mathematical procedure for obtaining frequency-dependent storage and loss moduli [G'(omega) and G''(omega), respectively], from time-dependent experimental measurements. The procedure is applicable to ordinary rheological creep (stress-step) measurements, as well as all microrheological techniques, whether they access a Brownian mean-square displacement, or a forced compliance. Data can be substituted directly into our simple formula, thus eliminating traditional fitting and smoothing procedures that disguise relevant experimental noise.
authors: School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, United Kingdom. mike.evans@physics.org
authors: R M L
authors: RM
authors: Evans
authors: Manlio
authors: M
authors: Tassieri
authors: Dietmar
authors: D
authors: Auhl
authors: Thomas A
authors: TA
authors: Waigh