Small-angle scattering interferometry with neutron orbital angular momentum states.

Autor: Sarenac D; Department of Physics, University at Buffalo, State University of New York, Buffalo, NY, USA. dusansar@buffalo.edu.; Institute for Quantum Computing, University of Waterloo, Waterloo, ON, Canada. dusansar@buffalo.edu., Henderson ME; Institute for Quantum Computing, University of Waterloo, Waterloo, ON, Canada.; Department of Physics and Astronomy, University of Waterloo, Waterloo, ON, Canada.; Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA., Ekinci H; Institute for Quantum Computing, University of Waterloo, Waterloo, ON, Canada.; Department of Physics and Astronomy, University of Waterloo, Waterloo, ON, Canada., Clark CW; Joint Quantum Institute, National Institute of Standards and Technology and University of Maryland, College Park, MD, USA., Cory DG; Institute for Quantum Computing, University of Waterloo, Waterloo, ON, Canada.; Department of Chemistry, University of Waterloo, Waterloo, ON, Canada., DeBeer-Schmitt L; Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA., Huber MG; National Institute of Standards and Technology, Gaithersburg, MD, USA., Lailey O; Institute for Quantum Computing, University of Waterloo, Waterloo, ON, Canada.; Department of Physics and Astronomy, University of Waterloo, Waterloo, ON, Canada., White JS; Laboratory for Neutron Scattering and Imaging, PSI Center for Neutron and Muon Sciences, Villigen, Switzerland., Zhernenkov K; Jülich Centre for Neutron Science at Heinz Maier-Leibnitz Zentrum, Garching, Germany., Pushin DA; Institute for Quantum Computing, University of Waterloo, Waterloo, ON, Canada. dmitry.pushin@uwaterloo.ca.; Department of Physics and Astronomy, University of Waterloo, Waterloo, ON, Canada. dmitry.pushin@uwaterloo.ca.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2024 Dec 30; Vol. 15 (1), pp. 10785. Date of Electronic Publication: 2024 Dec 30.
DOI: 10.1038/s41467-024-54991-8
Abstrakt: Methods to prepare and characterize neutron helical waves carrying orbital angular momentum (OAM) were recently demonstrated at small-angle neutron scattering (SANS) facilities. These methods enable access to the neutron orbital degree of freedom which provides new avenues of exploration in fundamental science experiments as well as in material characterization applications. However, it remains a challenge to recover phase profiles from SANS measurements. We introduce and demonstrate a novel neutron interferometry technique for extracting phase information that is typically lost in SANS measurements. An array of reference beams, with complementary structured phase profiles, are put into a coherent superposition with the array of object beams, thereby manifesting the phase information in the far-field intensity profile. We demonstrate this by resolving petal-structure signatures of helical wave interference for the first time: an implementation of the long-sought recovery of phase information from small-angle scattering measurements.
Competing Interests: Competing interests: D.S. and D.A.P. are inventors on a patent related to this work filed by Incoherent Vision Inc., US Patent App. 17/300,329. The remaining authors declare no competing interests.
(© 2024. The Author(s).)
Databáze: MEDLINE
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