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Microcavity Enhanced Beaming And Magneto-Optical Switching Of Light, Ali Haddadpour
Microcavity Enhanced Beaming And Magneto-Optical Switching Of Light, Ali Haddadpour
LSU Doctoral Dissertations
In this dissertation, we show numerically that a compact structure, consisting of multiple optical microcavities at both the entrance and exit sides of a subwavelength plasmonic slit, can lead to greatly enhanced directional transmission through the slit. The microcavities increase the resonant enhancement of the emission in the normal direction and/or the coupling between free space waves and the slit mode. An optimized structure with two microcavities on both the entrance and exit sides of the slit leads to ~ 16 times larger transmission cross section per unit angle in the normal direction compared to the optimized reference slit without …