title: Active phase stabilization in Fourier-transform two-dimensional infrared spectroscopy.
abstract: A scheme for active phase stabilization and absolute positioning in Fourier-transform two-dimensional (2D) IR spectroscopy is presented. The position accuracy is better than 20 nm(rms) corresponding to lambda/250 at 5 microm, which significantly improves the quality of Fourier-transform 2D IR spectra. Phase stabilization is added to a standard photon echo setup in a way that does not impair the flexibility of the experiment and the control over IR pulse parameters.
authors.affiliation: Physikalisch-Chemisches Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland.
authors.forename: Victor
authors.initials: V
authors.lastname: Volkov
authors.forename: Roland
authors.initials: R
authors.lastname: Schanz
authors.forename: Peter
authors.initials: P
authors.lastname: Hamm