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Determination of complex modes in photonic crystal waveguides using the phase variation in characteristic coefficients

机译:利用特征系数的相位变化确定光子晶体波导中的复模

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摘要

An efficient frequency-domain method, the phase variation monitoring (PVM) method, is proposed to determine the electromagnetic eigenmodes in two-dimensional photonic crystal waveguides. The proposed method is based on monitoring the reflection and transmission coefficients of incident plane waves. It is successfully applied to an illustrative line-defect photonic crystal waveguide and proved to be capable of calculating the in-plane leakage through the finite-size photonic crystal surrounding the line-defect. Calculation of the leakage loss is not only important for proper understanding of wave propagation within the defect but also for its significant role in applications of photonic structures.
机译:提出了一种有效的频域方法,即相位变化监测(PVM)方法,来确定二维光子晶体波导中的电磁本征模。所提出的方法是基于监视入射平面波的反射和透射系数。它已成功地应用于说明性的线缺陷光子晶体波导,并被证明能够计算出围绕线缺陷的有限尺寸光子晶体的面内泄漏。泄漏损耗的计算不仅对于正确理解缺陷内的波传播很重要,而且对于其在光子结构应用中的重要作用也很重要。

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