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Updated: Sep 1, 2025

Implementation of a Reference Interferometer for Nanodetection
Published on: April 26, 2014
Neutron interference from a split-crystal interferometer
H Lemmel1, M Jentschel2, H Abele1
1ATI - Atominstitut, TU Wien, Wien, Austria.
Abstract:
The first successful operation of a neutron interferometer with a separate beam-recombining crystal is reported. This result was achieved at the neutron interferometry setup S18 at the ILL in Grenoble by a collaboration between TU Wien, ILL, Grenoble, and INRIM, Torino. While previous interferometers have been machined out of a single-crystal block, in this work two crystals were successfully aligned on nanoradian and picometre scales, as required to obtain neutron interference. As a decisive proof-of-principle demonstration, this opens the door to a new generation of neutron interferometers and exciting applications.
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