Coupled optical defect microcavities in 1D photonic crystals and quasi-normal modes

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Maksimovic, M. and Hammer, M. and Groesen van, E. (2008) Coupled optical defect microcavities in 1D photonic crystals and quasi-normal modes. In: Integrated Optics: Devices, Materials, and Technologies XII, 21 January 2008, San Jose, CA, USA.

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Abstract:We analyze coupled optical defect cavities realized in finite one-dimensional Photonic Crystals. Viewing these as open systems where waves are permitted to leave the structures, one obtains eigenvalue problems for complex frequencies (eigenvalues) and Quasi-Normal-Modes (eigenfunctions). Single defect structures (photonic crystal atoms) can be viewed as elementary building blocks for multiple-defect structures (photonic crystal molecules) with more complex functionality. The QNM description links the resonant behavior of individual PC atoms to the properties of the PC molecules via eigenfrequency splitting. A variational principle for QNMs permits to predict the eigenfield and the complex eigenvalues in PC molecules starting with a field template incorporating the relevant QNMs of the PC atoms. Further, both the field representation and the resonant spectral transmission close to these resonances are obtained from a variational formulation of the transmittance problem using a template with the most relevant QNMs. The method applies to both symmetric and nonsymmetric single and multiple cavity structures with weak or strong coupling between the defects.
Item Type:Conference or Workshop Item
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/64970
Official URL:http://dx.doi.org/10.1117/12.762652
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