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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)
A fractal-like (Cantor-like) stratified structure of chiral and achiral isotropic layers is considered. Peculiarities of the wave localization, scalability and sequential splitting in the reflected field of both co-polarized and cross-polarized components are studied. The appearing of the additional peak multiplets in stopbands is revealed, and a correlation of their properties with chirality parameter...
We study de nonlinear optical properties of three ionic liquids of family [BMIM]. The ionic liquids are 1-buthyl-3-methylimidazolium tetrafluoroborate, 1-buthyl-3-methylimidazolium trifluoroacetate, and 1-buthyl-3-methylimidazolium Bis((trifluoromethyl)sulfonyl)imide. We calculate the static molecular polarizability (α) and hyperpolarizability (β,γ) using PM3 model and determinate experimentally the...
The influence of In surface segregation and internal fields induced by polarization charges on the band structure on InGaN/GaN quantum wells is studied in the frame of 6×6 multiband model. The indium surface segregation leads to the blue shift of the transition energy (70 meV for the segregation length 1nm at both heterointerfaces) while the piezoelectric polarization itself causes the red shift....
We considered the possibility of the creation of Faraday rotator for optical switch on the basis of ferrite-garnet film with the "angular phase" magnetic anisotropy. The Faraday effect was researched under the extending of light in the plane of the film in the direction of the plane projection on axis of hard magnetization. Under the magnetization of the film by the field saturation of ≈50...
Passive polarization converter based on the Bragg reflector with multiple defects is proposed. The structure consists of N distributed Bragg reflectors (DBR) separated by N-1 defects. Transmittance spectra for two orthogonal polarizations of the incident plane wave are presented.
Double-charge femtosecond vortices were synthesized with the polarization-singularity beam converter [1]. The vortex was focused using moderate and high numerical aperture optics (NA = 0.45 and 0.9) to ablate fused silica and soda-lime glasses. The results demonstrate that the ablation can be controlled on a sub-micrometer scale with a high degree of repeatability.
Optical properties of both symmetrical and asymmetrical modified Fibonacci structures of chiral and achiral isotropic layers are studied. The localization and polarization transformation of linearly polarized waves are considered. The effect of the phase shift compensation in the reflected field is shown in the case of an asymmetrical modified Fibonacci multilayer.
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