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10th International Conference on Laser and Fiber-Optical Networks Modeling (LFNM 2010). 2nd IEEE International Workshop on THz Radiation: Basic Research and Applications (TERA 2010)
The one-dimensional dielectric photonic crystals with complex defect layers, consisting of ultrathin superconducting and dielectric sublayers are theoretically studied. The pronounced difference in the transmittivity spectra of the photonic crystals with right-handed and left-handed positions of the superconducting defect sublayer with respect to the dielectric defect sublayer is demonstrated. The...
We study de nonlinear optical properties of organic materials. Multiple rings appear as a CW Ar laser passes through a nonlinear organic liquid. The rings formation is due to spatial self-phase modulation and is observed with 50 mW of continuous wave of Ar laser. We show the dependence between power and rings formed. As a first approximation to value the nonlinear refractive index we use the number...
The surface plasmon-polaritons and waveguide modes in prismatic structures are researched. The metallic layer is deposited on glass prism in the first structure and dielectric layer was deposited on metallic film in the second structure. The reflectance from the metallic layer equal zero at assiduously defined parameters. The first structure has high sensitivity of the minimum reflection angle; the...
The process of optical formation of dielectric waveguiding structures in transparent photopolymerizable composition (PPC) containing non-polymerizable component (NC) is considered. It is shown, that using NC does not break modes of influencing radiation self-channeling, and on the contrary, allows to provide conditions of matching of the synthesized waveguiding structures with optical fibers. Results...
The behaviour of a scalar optical beam at the boundary between two dissimilar nonlinear media is of fundamental interest in photonics. Here, we report the first systematic generalization of our Kerr analyses to a wider class of power-law materials. Universal refraction laws will be given, and theory-simulation agreement demonstrated.
A method for calculating the refractive index of optical fused silica is proposed and realized. Fused silica is treated as a composite medium with nanopores in matrix with density differing from the crystalline quartz density. Maxwell Garnett model of effective dielectric permittivity is found to be accurate within 0.0002.
Approximate theory of interaction of optical waves with pure reflection gratings at fulfillment of the second and third orders Bragg conditions has been developed. Expressions of the reflectance were obtained. The start-oscillation conditions in gratings with amplification were searched. It is found that reflectance zeros are near generating modes of grating with amplification in gratings without...
The scattering of Gaussian beam on the metamaterial slab with negative refractive index is considered. Modeling is based on the spectral decomposition of the beam field in plane waves. The effect of different parameters on the polarization characteristics of the electromagnetic field reflected from the metamaterial layer and transmitted through it is investigated. The possibility of control of the...
Nonlinear-optical response of metal-alkanoates anisotropic glasses based on cobalt-alkanoate was studied using method of the dynamic holography. Fundamental optical (refractive index n and absorption coefficient α) and nonlinear-optical (nonlinear susceptibilities χ(3) and polarizabilities γNL) parameters of the mesomorphic glasses based on cobalt-alkanoates can be tuned via varying chain length anion...
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