Abstract
By taking the aperture as a resonator, we propose an analytical model to describe the dynamic transmission in metal-dielectric-metal (MDM) waveguide aperture-side-coupled with slot cavity. The theoretical results and the finite-difference time-domain (FDTD) simulations agree well with each other, and both demonstrate the mode selectivity and filtering tunability of the plasmonic structure. By adjusting the phase shifts in slot cavity or resonance frequency determined by the aperture, one can realize the required transmission spectra and slow light effect. The theoretical analysis may open up avenues for the control of light in highly integrated optical circuits.
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Acknowledgments
This work was funded by the Fundamental Research Funds for the Central Universities of Central South University under Grant No. 2012zzts007 and 2013zzts009, the Research Fund for the Doctoral Program of Higher Education of China under Grant No. 20100162110068, and the National Natural Science Foundation of China under Grant No. 61275174.
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Cao, G., Li, H., Deng, Y. et al. Systematic Theoretical Analysis of Selective-Mode Plasmonic Filter Based on Aperture-Side-Coupled Slot Cavity. Plasmonics 9, 1163–1169 (2014). https://doi.org/10.1007/s11468-014-9727-y
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DOI: https://doi.org/10.1007/s11468-014-9727-y