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Highly efficient in-plane channel drop filter in a two-dimensional heterophotonic crystal
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View: Figures


Image of FIG. 1.
FIG. 1.

(Color online) Schematic of the in-plane filtering device proposed in this work.

Image of FIG. 2.
FIG. 2.

(Color online) (a) Drop efficiency as a function of the phase change in the waveguide, , caused by reflection at the heterostructure interface. was assumed to be 5 and 50; (b) The drop spectrum simulated using the 3D-FDTD method, where the distance between the defect cavity and the heterostructure interface was set to .

Image of FIG. 3.
FIG. 3.

Scanning electron microscope images of the fabricated samples. (a) Top view of the sample utilizing a heterophotonic crystal structure; (b) magnified view of the heterostructure interface.

Image of FIG. 4.
FIG. 4.

(Color online) (a) “Drop spectrum” (solid line) and “through spectrum” (dotted line) of the fabricated device; (b) drop efficiency as a function of the quality factor. The solid circles and an open square denote the experimental results for devices with and without the heterostructure, respectively. The solid line denotes the theoretically calculated result, obtained using coupled mode theory.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Highly efficient in-plane channel drop filter in a two-dimensional heterophotonic crystal