Phase and contrast moiré signatures in two-dimensional cone beam interferometry
Neutron interferometry has played a distinctive role in fundamental science and characterization of materials. Moiré neutron interferometers are candidate next-generation instruments: they offer microscopy-like magnification of the signal, enabling direct camera recording of interference patterns across the full neutron wavelength spectrum. Here we demonstrate the extension of phase-grating moiré interferometry to two-dimensional geometries. Our fork-dislocation phase gratings reveal phase singularities in the moiré pattern, and we explore orthogonal moiré patterns with two-dimensional phase gratings. Our measurements of phase topologies and gravitationally induced phase shifts are in good agreement with theory. These techniques can be implemented in existing neutron instruments to advance interferometric analyses of emerging materials and precision measurements of fundamental constants. Published by the American Physical Society 2024
Authors
- Y. Kim
- T. Shinohara (ORCID: https://orcid.org/0000-0003-4432-7681)
- Dusan Sarenac (ORCID: https://orcid.org/0000-0001-8575-3367)
- Connor Kapahi (ORCID: https://orcid.org/0000-0001-6051-6859)
- David G. Cory (ORCID: https://orcid.org/0000-0002-1270-6268)
- Huseyin Ekinci (ORCID: https://orcid.org/0000-0003-3774-599X)
- Daniel S. Hussey (ORCID: https://orcid.org/0000-0002-2851-4367)
- Paul Kienzle (ORCID: https://orcid.org/0000-0002-7893-0318)
- D. A. Pushin (ORCID: https://orcid.org/0000-0002-4594-3403)
- M. G. Huber (ORCID: https://orcid.org/0000-0002-3795-8445)
- Charles W. Clark (ORCID: https://orcid.org/0000-0001-8724-9885)
- Alexander Long (ORCID: https://orcid.org/0000-0003-4300-9454)
- Fangzhou Song (ORCID: https://orcid.org/0000-0003-1236-4672)
- M. E. Henderson
- G. Gorbet (ORCID: https://orcid.org/0009-0005-2127-0389)
- Joseph D. Parker (ORCID: https://orcid.org/0000-0002-7775-4455)
Institutions
- National Institute of Standards and Technology (US)
- Los Alamos National Laboratory (US)
- University of Waterloo (CA)
- Japan Proton Accelerator Research Complex (JP)
- National Institute of Standards (EG)
- Comprehensive Research Organization for Science and Society (JP)
- Joint Quantum Institute (US)
- University at Buffalo, State University of New York (US)
- University of Maryland, College Park (US)
Publication Details
- Journal
- Physical Review Research
- Published
- 2024-09-05
- DOI
- https://doi.org/10.1103/physrevresearch.6.l032054
- Citations
- 1
- Primary Topic
- Nuclear Physics and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.61
Funders
- Materials and Life Science Experimental Facility
- Canada Excellence Research Chairs, Government of Canada
- Canada First Research Excellence Fund
- National Institute of Standards and Technology
- Natural Sciences and Engineering Research Council of Canada
- Nuclear Physics