Multilayer neutron interferometer with complete path separation

Yoshichika Seki, Haruhiko Funahashi, Masaaki Kitaguchi, Masahiro Hino, Yoshie Otake, Kaoru Taketani, Hirohiko M. Shimizu

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


We have developed a new multilayer cold-neutron interferometer using a pair of beam splitting etalons (BSEs) with an air gap of 189 μm in spacing. This is the first multilayer neutron interferometer that separates two paths from each other completely without an overlap. Clear interference fringes with a contrast of 67% have been observed using a monochromatic cold-neutron beam with a wavelength of 0.88 nm.

Original languageEnglish
Article number124201
Journaljournal of the physical society of japan
Issue number12
Publication statusPublished - 2010 Dec
Externally publishedYes


  • Etalon
  • Fundamental physics
  • Multilayer mirror
  • Neutron interferometer
  • Neutron optics

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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