Neutron low-index thin-film waveguides with antiresonant high-reflection layers

Journal Article · Fri Aug 01 04:00:00 EDT 1997 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.56.4971· OSTI ID:538550

Pogossian, S P ^[1]; Menelle, A ^[2]; Le Gall, H; Ben Youssef, J; Desvignes, J M ^[1]

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1. CNRS, Laboratoires de Bellevue, EP-95, 1 Place Aristide Briand, F-92195 Meudon (France)
2. Laboratoire Leon Brillouin (CEA-CNRS), CE Saclay, F-91191, Gif-sur-Yvette (France)

Neutron low-index thin-film waveguides and waveguide coupler with antiresonant high-reflection layers are proposed and realized experimentally. In contrast to the conventional thin-film waveguides, neutrons are confined in a region with a refractive index lower than those of the neighboring media. As shown, the in/out coupling of resonant modes is realized by the conventional neutron-reflectometry technique. Original numerical methods are used to evaluate the eigenstates. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 538550
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 8 Vol. 56; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
NEUTRON BEAMS
NEUTRON GUIDES
NEUTRONS
REFRACTIVE INDEX
THIN FILMS
WAVE PROPAGATION
WAVEGUIDES