Journal
OPTICS COMMUNICATIONS
Volume 334, Issue -, Pages 16-21Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2014.07.058
Keywords
Ferronematic liquid crystal; Reorientation; AC voltage; Nonlinearity
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Third order nonlinearity of Fe3O4 nanoparticles (NPs) doped in nematic liquid crystals (NLCs) was evaluated due to laser induced self-phase modulation. The influence of electric field on the nonlinear optical responses of the NLCs doped with Fe3O4 NPs was considered in different voltages. The measurements were performed for two commonly initial alignments (homogeneous and homeotropic) with different small compositional percentages of magnetic NPs. The experimental results show that the homogenous- aligned cell was considerably affected on the applied electric field while the nonlinearity of homeotropic-aligned NLCs with the Fe3O4 NPs did not approximately change in the presence of electric field. (C) 2014 Elsevier EN. All rights reserved.
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