منابع مشابه
Ferroelectric Optics:Optical Bistability in Nonlinear Kerr Ferroelectric Materials
Ferroelectric oxides with perovskite structure such as PbLaTiO3 (PLT), BaTiO3, PbTiO3, SrBi2Ta2O9 and LiNbO3 are very attractive class of materials which possess numerous useful properties such as high dielectric constant, large spontaneous polarization, and remarkable optical nonlinearity. Potential applications of these materials include real-time holography, correlation filtering and various...
متن کاملLosses in left-handed materials.
Interest in negative refractive index, or left-handed (LH) materials, has escalated rapidly over the last few years and it now appears that useful LH materials may be realizable in the microwave region. However there is also considerable interest in LH materials for infrared and visible applications. The purpose of this paper is to explore the limitations of LH materials at short wavelengths du...
متن کاملFerroelectric translational antiphase boundaries in nonpolar materials
Ferroelectric materials are heavily used in electro-mechanics and electronics. Inside the ferroelectric, domain walls separate regions in which the spontaneous polarization is differently oriented. Properties of ferroelectric domain walls can differ from those of the domains themselves, leading to new exploitable phenomena. Even more exciting is that a non-ferroelectric material may have domain...
متن کاملTransmission losses in left-handed materials.
We numerically analyze the origin of the transmission losses in left-handed structures. Our data confirms that left-handed structures can have very good transmission properties, in spite of the expectable dispersion of their effective permeability and refraction index. The large permittivity of the metallic components improves the transmission. High losses, observed in recent experiments, could...
متن کاملExistence, uniqueness and homogenization for ferroelectric materials
We discuss existence, uniqueness, and homogenization results for a class of rate-independent, nonlinear ferroelectric models. We show that these models can be formulated in an energetic framework which is based on the elastic and the electric displacements as reversible variables and on interior, irreversible variables like the remanent polarization. The PDE system defining the model is restate...
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ژورنال
عنوان ژورنال: Materials Science and Engineering: R: Reports
سال: 2015
ISSN: 0927-796X
DOI: 10.1016/j.mser.2015.01.002