Colossal light-induced refractive-index modulation for neutrons in holographic polymer-dispersed liquid crystals

被引：16
|
作者：
Fally, Martin
Drevensek-Olenik, Irena
Ellabban, Mostafa A.
Pranzas, Klaus P.
Vollbrandt, Juergen
机构：
[1] Univ Vienna, Fac Phys, Nonlinear Phys Grp, A-1090 Vienna, Austria
[2] Univ Ljubljana, Fac Math & Phys, SI-1001 Ljubljana, Slovenia
[3] Jozef Stefan Inst, SI-1001 Ljubljana, Slovenia
[4] GKSS Forschungszentrum Geesthacht GmbH, D-21502 Geesthacht, Germany
来源：
PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 16期
关键词：
D O I：
10.1103/PhysRevLett.97.167803
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report strong diffraction of cold neutrons from an only 30 mu m thick holographic polymer-dispersed liquid crystal (H-PDLC) transmission grating. The light-induced refractive-index modulation for neutrons is about 10(-6), i.e., nearly 2 orders of magnitude larger than in the best photo-neutron-refractive materials probed up to now. This makes H-PDLCs a promising candidate for fabricating neutron-optical devices.
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页数：4
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