Induced Magnetic Anisotropy in Liquid Crystals Doped with Resonant Semiconductor Nanoparticles Articles uri icon

publication date

  • January 2016

international standard serial number (ISSN)

  • 1687-4110

electronic international standard serial number (EISSN)

  • 1687-4129

abstract

  • Currently, there are many efforts to improve the electrooptical properties of liquid crystals by means of doping them with different types of nanoparticles. In addition, liquid crystals may be used as active media to dynamically control other interesting phenomena, such as light scattering resonances. In this sense, mixtures of resonant nanoparticles hosted in a liquid crystal could be a potential metamaterial with interesting properties. In this work, the artificial magnetism induced in a mixture of semiconductor nanoparticles surrounded by a liquid crystal is analyzed. Effective magnetic permeability of mixtures has been obtained using the Maxwell-Garnett effective medium theory. Furthermore, permeability variations with nanoparticles size and their concentration in the liquid crystal, as well as the magnetic anisotropy, have been studied.

keywords

  • Polarization modulation ellipsometry; Plasmonic color filters; Refractive-indexes; Optical functions; Dispersion; Scattering; Alignment; Arrays; Gaas