Zone plate for thermal neutron focusing: Design, fabrication and first experimental tests

Matteo Altissimo*, Caterina Petrillo, Francesco Sacchetti, Frederic Ott, Enzo Di Fabrizio

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

The aim of this paper is to present the design, the fabrication and the first experimental tests of neutrons focussing for our fabricated phase zone plates. Two different diffractive optical elements will be presented in the article. One is a 5 mm zone plate with a resolution of 400 nm and the other is a matrix (30 × 30) different Zone Plates, each one 300 μm in diameter, with an outermost zone width of 1 micron. A 4.8 μm thick natural nickel was used as phase shifter. This translates in High Aspect Ratios of ∼12 and ∼5, respectively, for these two devices. A series of test measurements carried out on a monochromatic neutrons beam have successfully demonstrated the ability of zone plates in focussing neutrons, thus opening a wide range of possible applications.

Original languageEnglish (US)
Pages (from-to)644-650
Number of pages7
JournalMicroelectronic Engineering
Volume73-74
DOIs
StatePublished - Jan 1 2004
EventMicro and Nano Engineering 2003 - Cambridge, United Kingdom
Duration: Sep 22 2003Sep 25 2003

Keywords

  • High aspect ratio zone plates
  • Nanofabrication
  • Neutron focussing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering

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