Emilian Cojocaru

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The extended Jones matrix method is applied to one dielectrically anisotropic, homogeneous thin film at oblique incidence. Standard boundary conditions are imposed on resultant electric- and magnetic-field vectors at interfaces. Thus simple matricial relations are obtained for transmitted and reflected electric-field amplitudes at the two interfaces. In the(More)
Omnidirectional reflection from periodic and Fibonacci quasi-periodic multilayers that are embedded in an isotropic medium is further analyzed. Besides the isotropic structures, birefringent structures are considered that comprise uniaxial layers in the principal-axis system, alternating with isotropic layers so that the refractive index of isotropic layers(More)
The general case of obliquely incident plane-wave propagation in periodic anisotropic layered media is presented. Arbitrary permittivity tensors of the two alternating anisotropic layers are considered. An immersion model is used with the assumption that each layer is embedded between two isotropic regions that have the same index of refraction as the(More)
Extraordinary-wave propagation within homogeneous uniaxial media is analyzed in the case of an arbitrary optic-axis orientation. Unit vectors along the electric- and magnetic-field directions are represented by direction cosines and vectorial relations. The extraordinary-ray path is determined simply by direction cosines. Numerical examples are given for(More)
—Simple normalized dispersion relations for transverse magnetic (T M) and transverse electric (T E) propagating modes in parallel-plate waveguides filled with DPS/DPS or DNG/DNG, and DNG/DPS bilayers are presented. The evanescent T E 0 mode of the waveguide filled with a DNG/DPS bilayer is characterized also by a simple normalized dispersion relation. Since(More)
In case of tunable ultrashort-pulse lasers, besides the prism material, separation, and insertion, one may choose the central wavelength providing a better high-order dispersion compensation. Because of errors that accumulate in numerical iterations, the analytic approach may be preferable for high-order dispersion examination. Analytic expressions for the(More)