Abstract

We introduce a method to obtain and describe the multiple defect modes in the multiple photonic quantum-well structure $[{(AB)}_{m}C{]}_n{(AB)}_m$. It is found that the relationship between structural parameters and defect modes can be obtained by analytically solving the dispersion relationship for the photonic crystal with its periodic unit $[{(AB)}_{m}C]$, and a laconic and unifying expression can be used to describe the energy levels of both the interface modes and defect modes. The internal mechanism to determine the related parameters is revealed. We believe that these findings can be used to provide direct guidance for practical application.

© 2018 Optical Society of America

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