English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Universal diffraction of atoms and molecules from a quantum reflection grating

MPS-Authors
/persons/resource/persons22295

Zhang,  Weiqing
Molecular Physics, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22079

Schöllkopf,  Wieland
Molecular Physics, Fritz Haber Institute, Max Planck Society;

Locator
There are no locators available
Fulltext (public)

e1500901.full.pdf
(Publisher version), 697KB

Supplementary Material (public)
There is no public supplementary material available
Citation

Zhao, B. S., Zhang, W., & Schöllkopf, W. (2016). Universal diffraction of atoms and molecules from a quantum reflection grating. Science Advances, 2(3): e1500901. doi:10.1126/sciadv.1500901.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002A-2B2A-7
Abstract
Since de Broglie’s work on the wave nature of particles, various optical phenomena have been observed with matter waves of atoms and molecules. However, the analogy between classical and atom/molecule optics is not exact because of different dispersion relations. In addition, according to de Broglie’s formula, different combinations of particle mass and velocity can give the same de Broglie wavelength. As a result, even for identical wavelengths, different molecular properties such as electric polarizabilities, Casimir-Polder forces, and dissociation energies modify (and potentially suppress) the resulting matter-wave optical phenomena such as diffraction intensities or interference effects. We report on the universal behavior observed in matter-wave diffraction of He atoms and He2 and D2 molecules from a ruled grating. Clear evidence for emerging beam resonances is observed in the diffraction patterns, which are quantitatively the same for all three particles and only depend on the de Broglie wavelength. A model, combining secondary scattering and quantum reflection, permits us to trace the observed universal behavior back to the peculiar principles of quantum reflection.