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

ABSTRACT: 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 th

SUBMITTER: Sarenac D 

PROVIDER: S-EPMC11685719 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature