Spectral filtering in neutron interferometry
- 5 August 1991
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 67 (6), 683-686
- https://doi.org/10.1103/physrevlett.67.683
Abstract
We have demonstrated experimentally that the contrast lost, due to placing slabs of a material having a neutron optical potential in one leg of a neutron interferometer, can be restored by spectral filtering of the beams leaving the interferometer immediately before detection. The non-Gaussian spectral distribution of the neutrons traversing the interferometer in our experiment leads to an unexpected phase reversal of the interferograms.Keywords
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