Method of Adiabatic Modes in Studying Problems of Smoothly Irregular Open Wav...

厚积薄发

New paper on integrated photonics: Method of Adiabatic Modes in Studying Problems of Smoothly Irregular Open Waveguide Structures, Physics of Atomic Nuclei, 2013, Vol. 76, No. 2, pp. 224-239.

Abstract. Basic steps in developing an original method of adiabatic modes that makes it possible to solve the direct and inverse problems of simulating and designing three-dimensional multilayered smoothly irregular open waveguide structures are described. A new element in the method is that an approximate solution of Maxwell's equations is made to obey "inclined" boundary conditions at the interfaces between the media being considered. These boundary conditions take into account the obliqueness of planes tangent to nonplanar boundaries between the media and lead to new equations for coupled vector quasiwaveguide hybrid adiabatic modes. Solutions of these equations describe the phenomenon of "entanglement" of two linear polarizations of an irregular multilayered waveguide, the appearance of a new mode in an entangled state, and the effect of rotation of the polarization plane of quasiwaveguide modes. The efficiency of the method is demonstrated by considering the example of numerically simulating a thin-film generalized waveguide Luneburg lens.

http://link.springer.com/journal/volumesAndIssues/11450

jason@math

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