title: F2Cor: fast 2-stage correlation algorithm for FCS and DLS.
abstract: We present a new multiple-tau correlation algorithm which is the fastest to date. The resulting curve is identical to that obtained with the conventional multiple-tau algorithm, but the calculation time is much shorter. It combines two approaches. For short values of the lag-time a very simple correlation histogram is used, while for higher lag-time values the traditional multiple-tau bin-and-multiply approach is used. The lag-time limit between these two stages depends on the count rate. The computation time scales linearly with the count rate and is as fast as 0.1 µs/photon.
authors.affiliation: UMR UR1-Centre National de la Recherche Scientifique 6026 Rennes, France. emmanuel.schaub@univ-rennes1.fr
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Schaub
mesh_terms: D000465:Algorithms; D003627:Data Interpretation, Statistical; D010783:Photometry / Q000379:methods*