On the role of the electric dipole moment in the diffraction of biomolecules at nanomechanical gratings
- Author(s)
- Christian Knobloch, Benjamin Stickler, Christian Brand, Michele Sclafani, Yigal Lilach, Thomas Juffmann, Ori Cheshnovsky, K. Hornberger, Markus Arndt
- Abstract
We investigate effects of a permanent electric dipole moment on matter-wave diffraction at nanomechanical gratings. Specifically, the diffraction patterns of hypericin at ultra-thin carbonaceous diffraction masks are compared with those of a polar and a non-polar porphyrin derivative of similar mass and de Broglie wavelength. We present a theoretical analysis of the diffraction of a rotating dipole highlighting that small local electric charges in the material mask can strongly reduce the interference visibility. We discuss the relevance of this finding for single grating diffraction and multi-grating interferometry with biomolecules.
- Organisation(s)
- Quantum Optics, Quantum Nanophysics and Quantum Information
- External organisation(s)
- Universität Duisburg-Essen, Tel Aviv University
- Journal
- Fortschritte der Physik
- Volume
- 65
- No. of pages
- 8
- ISSN
- 0015-8208
- DOI
- https://doi.org/10.1002/prop.201600025
- Publication date
- 09-2016
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103026 Quantum optics
- Keywords
- ASJC Scopus subject areas
- General, Physics and Astronomy(all)
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/on-the-role-of-the-electric-dipole-moment-in-the-diffraction-of-biomolecules-at-nanomechanical-gratings(9878f4e8-5683-453b-bee4-0e53e9d89f1f).html