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Proceedings Paper

Neutron diffraction from holographic polymer-dispersed liquid crystals
Author(s): I. Drevensek-Olenik; M. A. Ellabban; M. Fally; K. P. Pranzas; J. Vollbrandt
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Paper Abstract

Photopolymerization-induced phase separation of the constituent components in holographic polymer-dispersed liquid crystals (H-PDLCs) causes a huge variation of the refractive index for light as well as for neutrons. We demonstrated that H-PDLCs with the thickness of only 30 micrometers act as extremely efficient gratings for neutrons. The lightinduced refractive-index modulation for neutrons of about 10-6 was observed, which is nearly two orders of magnitude larger than found in the best photo-neutron-refractive materials probed up to now. This makes H-PDLCs very promising candidate for fabricating neutron-optical devices.

Paper Details

Date Published: 9 May 2007
PDF: 6 pages
Proc. SPIE 6587, Liquid Crystals and Applications in Optics, 65870F (9 May 2007); doi: 10.1117/12.722821
Show Author Affiliations
I. Drevensek-Olenik, Univ. of Ljubljana (Slovenia)
M. A. Ellabban, Univ. of Vienna (Austria)
M. Fally, Univ. of Vienna (Austria)
K. P. Pranzas, GKSS Research Ctr. (Germany)
J. Vollbrandt, GKSS Research Ctr. (Germany)

Published in SPIE Proceedings Vol. 6587:
Liquid Crystals and Applications in Optics
Milada Glogarova; Peter Palffy-Muhoray; Martin Copic, Editor(s)

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