Optical polarizabilities of large molecules measured in near-field interferometry

Lucia Hackermüller, Klaus Hornberger, Stefan Gerlich, Michael Gring, Hendrik Ulbricht, Markus Arndt

Publications: Contribution to journalArticlePeer Reviewed


We discuss a novel application of matter wave interferometry to characterize the scalar optical polarizability of molecules at 532 nm. The interferometer presented here consists of two material absorptive gratings and one central optical phase grating. The interaction of the molecules with the standing light wave is determined by the optical dipole force and is therefore directly dependent on the molecular polarizability at the wavelength of the diffracting laser light. By comparing the observed matter-wave interference contrast with a theoretical model for several intensities of the standing light wave and molecular velocities, we can infer the polarizability in this first proof-of-principle experiment for the fullerenes C(60) and C(70), and we find a good agreement with literature values.
Original languageEnglish
Pages (from-to)469-473
Number of pages5
JournalApplied Physics B: Lasers and Optics
Issue number4
Publication statusPublished - 2007

Austrian Fields of Science 2012

  • 103026 Quantum optics

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