Optical Nonlinearity of Liquid Crystals in the Presence of Chained Ferroelectric Nanoparticles |
| J. Poursamad, M. Emdadi
Department of Laser and Optical Engineering, University of Bonab, Bonab, Iran |
| Received: May 19, 2018; in final form December 31, 2018 |
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| A nematic liquid crystal cell doped with spherical ferroelectric nanoparticles is studied in the high frequency regime. Optical permittivity of the host nematic liquid crystal in the presence of chained ferroelectric nanoparticles, birefringence and optical Freedericksz transition threshold of the suspension are discussed theoretically. The director reorientation of doped nematic liquid crystal is due to the simultaneous presence of the oblique incidence of a light beam and external applied magnetic field in the small director reorientation approximation. Also, optical nonlinearity of the medium is analytically calculated here. The obtained optical nonlinearity is in the range of supra-nonlinearity. |
DOI:10.12693/APhysPolA.136.861 PACS numbers: 78.67.Bf, 77.84.-s |