Neutron diffraction from holographic polymer-dispersed liquid crystals

I. Drevensek-Olenik; M. A. Ellabban; M. Fally; K. P. Pranzas; J. Vollbrandt

doi:10.1117/12.722821

9 May 2007 Neutron diffraction from holographic polymer-dispersed liquid crystals

I. Drevensek-Olenik, M. A. Ellabban, M. Fally, K. P. Pranzas, J. Vollbrandt

Proceedings Volume 6587, Liquid Crystals and Applications in Optics; 65870F (2007) https://doi.org/10.1117/12.722821
Event: International Congress on Optics and Optoelectronics, 2007, Prague, Czech Republic

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.

Citation Download Citation

I. Drevensek-Olenik, M. A. Ellabban, M. Fally, K. P. Pranzas, and J. Vollbrandt "Neutron diffraction from holographic polymer-dispersed liquid crystals", Proc. SPIE 6587, Liquid Crystals and Applications in Optics, 65870F (9 May 2007); https://doi.org/10.1117/12.722821

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